flying opossum: nocturnal phalangers that move with gliding leaps using parachute-like folds of skin along the sides of the body


flying squirrel: nocturnal phalangers that move with gliding leaps using parachute-like folds of skin along the sides of the body


Acrobates: a genus of Phalangeridae


genus Acrobates: a genus of Phalangeridae


flying mouse: tiny flying phalanger


Phascolarctos: koalas


genus Phascolarctos: koalas


koala: sluggish tailless Australian arboreal marsupial with grey furry ears and coat; feeds on eucalyptus leaves and bark


koala bear: sluggish tailless Australian arboreal marsupial with grey furry ears and coat; feeds on eucalyptus leaves and bark


kangaroo bear: sluggish tailless Australian arboreal marsupial with grey furry ears and coat; feeds on eucalyptus leaves and bark


native bear: sluggish tailless Australian arboreal marsupial with grey furry ears and coat; feeds on eucalyptus leaves and bark


Phascolarctos cinereus: sluggish tailless Australian arboreal marsupial with grey furry ears and coat; feeds on eucalyptus leaves and bark


Vombatidae: wombats


family Vombatidae: wombats


wombat: burrowing herbivorous Australian marsupials about the size of a badger


Dasyuridae: dasyures; native cats; pouched mice; banded anteaters; Tasmanian devils


family Dasyuridae: dasyures; native cats; pouched mice; banded anteaters; Tasmanian devils


family Dasyurinae: dasyures; native cats; pouched mice; banded anteaters; Tasmanian devils


dasyurid marsupial: small carnivorous nocturnal marsupials of Australia and Tasmania


dasyurid: small carnivorous nocturnal marsupials of Australia and Tasmania


Dasyurus: type genus of the family Dasyuridae: native cats


genus Dasyurus: type genus of the family Dasyuridae: native cats


dasyure: any of several more or less arboreal marsupials somewhat resembling martens


eastern dasyure: a variety of dasyure


Dasyurus quoll: a variety of dasyure


native cat: carnivorous arboreal cat-like marsupials of Australia and Tasmania


Dasyurus viverrinus: carnivorous arboreal cat-like marsupials of Australia and Tasmania


Thylacinus: Tasmanian wolf


genus Thylacinus: Tasmanian wolf


thylacine: rare doglike carnivorous marsupial of Tasmania having stripes on its back; probably extinct


Tasmanian wolf: rare doglike carnivorous marsupial of Tasmania having stripes on its back; probably extinct


Tasmanian tiger: rare doglike carnivorous marsupial of Tasmania having stripes on its back; probably extinct


Thylacinus cynocephalus: rare doglike carnivorous marsupial of Tasmania having stripes on its back; probably extinct


Sarcophilus: Tasmanian devil


genus Sarcophilus: Tasmanian devil


Tasmanian devil: small ferocious carnivorous marsupial having a mostly black coat and long tail


ursine dasyure: small ferocious carnivorous marsupial having a mostly black coat and long tail


Sarcophilus hariisi: small ferocious carnivorous marsupial having a mostly black coat and long tail


Phascogale: pouched mice


genus Phascogale: pouched mice


pouched mouse: any of numerous small sharp-nosed insectivorous marsupials superficially resembling mice or rats


marsupial mouse: any of numerous small sharp-nosed insectivorous marsupials superficially resembling mice or rats


marsupial rat: any of numerous small sharp-nosed insectivorous marsupials superficially resembling mice or rats


Myrmecobius: banded anteater


genus Myrmecobius: banded anteater


numbat: small Australian marsupial having long snout and strong claws for feeding on termites; nearly extinct


banded anteater: small Australian marsupial having long snout and strong claws for feeding on termites; nearly extinct


anteater: small Australian marsupial having long snout and strong claws for feeding on termites; nearly extinct


Myrmecobius fasciatus: small Australian marsupial having long snout and strong claws for feeding on termites; nearly extinct


Notoryctidae: pouched moles


family Notoryctidae: pouched moles


Notoryctus: type genus of the family Notoryctidae: comprising solely the marsupial mole


genus Notoryctus: type genus of the family Notoryctidae: comprising solely the marsupial mole


pouched mole: small burrowing Australian marsupial that resembles a mole


marsupial mole: small burrowing Australian marsupial that resembles a mole


Notoryctus typhlops: small burrowing Australian marsupial that resembles a mole


Eutheria: all mammals except monotremes and marsupials


subclass Eutheria: all mammals except monotremes and marsupials


placental: mammals having a placenta; all mammals except monotremes and marsupials


placental mammal: mammals having a placenta; all mammals except monotremes and marsupials


eutherian: mammals having a placenta; all mammals except monotremes and marsupials


eutherian mammal: mammals having a placenta; all mammals except monotremes and marsupials


livestock: any animals kept for use or profit


stock: any animals kept for use or profit


farm animal: any animals kept for use or profit


bull: mature male of various mammals of which the female is called `cow'; e.g. whales or elephants or especially cattle


cow: mature female of mammals of which the male is called `bull'


calf: young of domestic cattle


calf: young of various large placental mammals e.g. whale or giraffe or elephant or buffalo


yearling: an animal in its second year


buck: mature male of various mammals (especially deer or antelope)


doe: mature female of mammals of which the male is called `buck'


Insectivora: shrews; moles; hedgehogs; tenrecs


order Insectivora: shrews; moles; hedgehogs; tenrecs


Lipotyphla: moles; hedgehogs; true shrews


suborder Lipotyphla: moles; hedgehogs; true shrews


Menotyphla: elephant shrews; tree shrews


suborder Menotyphla: elephant shrews; tree shrews


insectivore: small insect-eating mainly nocturnal terrestrial or fossorial mammals


Talpidae: moles


family Talpidae: moles


mole: small velvety-furred burrowing mammal having small eyes and fossorial forefeet


Condylura: star-nosed moles


genus Condylura: star-nosed moles


starnose mole: amphibious mole of eastern North America having pink fleshy tentacles around the nose


star-nosed mole: amphibious mole of eastern North America having pink fleshy tentacles around the nose


Condylura cristata: amphibious mole of eastern North America having pink fleshy tentacles around the nose


Parascalops: brewer's moles


genus Parascalops: brewer's moles


brewer's mole: mole of eastern North America


hair-tailed mole: mole of eastern North America


Parascalops breweri: mole of eastern North America


Chrysochloridae: golden moles


family Chrysochloridae: golden moles


Chrysochloris: type genus of the Chrysochloridae


genus Chrysochloris: type genus of the Chrysochloridae


golden mole: mole of southern Africa having iridescent guard hairs mixed with the underfur


Uropsilus: shrew moles


genus Uropsilus: shrew moles


shrew mole: slender mole having a long snout and tail


Asiatic shrew mole: shrew mole of eastern Asia


Uropsilus soricipes: shrew mole of eastern Asia


Neurotrichus: shrew moles


genus Neurotrichus: shrew moles


American shrew mole: greyish-black shrew mole of the United States and Canada


Neurotrichus gibbsii: greyish-black shrew mole of the United States and Canada


Soricidae: shrews


family Soricidae: shrews


shrew: small mouselike mammal with a long snout; related to moles


shrewmouse: small mouselike mammal with a long snout; related to moles


Sorex: type genus of the family Soricidae: shrews


genus Sorex: type genus of the family Soricidae: shrews


common shrew: common American shrew


Sorex araneus: common American shrew


masked shrew: commonest shrew of moist habitats in North America


Sorex cinereus: commonest shrew of moist habitats in North America


Blarina: shrews


genus Blarina: shrews


short-tailed shrew: North American shrew with tail less than half its body length


Blarina brevicauda: North American shrew with tail less than half its body length


water shrew: any of several small semiaquatic shrews usually living near swift-flowing streams


American water shrew: water shrew of North America


Sorex palustris: water shrew of North America


Neomys: a genus of Soricidae


genus Neomys: a genus of Soricidae


European water shrew: widely distributed Old World water shrew


Neomys fodiens: widely distributed Old World water shrew


Mediterranean water shrew: a type of water shrew


Neomys anomalus: a type of water shrew


Cryptotis: least shrews


genus Cryptotis: least shrews


least shrew: small brown shrew of grassy regions of eastern United States


Cryptotis parva: small brown shrew of grassy regions of eastern United States


Erinaceidae: true hedgehogs


family Erinaceidae: true hedgehogs


Erinaceus: type genus of the family Erinaceidae: hedgehogs


genus Erinaceus: type genus of the family Erinaceidae: hedgehogs


hedgehog: small nocturnal Old World mammal covered with both hair and protective spines


Erinaceus europaeus: small nocturnal Old World mammal covered with both hair and protective spines


Erinaceus europeaeus: small nocturnal Old World mammal covered with both hair and protective spines


Tenrecidae: tenrecs and extinct related forms


family Tenrecidae: tenrecs and extinct related forms


tenrec: small often spiny insectivorous mammal of Madagascar; resembles a hedgehog


tendrac: small often spiny insectivorous mammal of Madagascar; resembles a hedgehog


genus Tenrec: type genus of the family Tenrecidae: tenrecs


tailless tenrec: prolific animal that feeds chiefly on earthworms


Tenrec ecaudatus: prolific animal that feeds chiefly on earthworms


Potamogalidae: otter shrews


family Potamogalidae: otter shrews


genus Potamogale: type genus of the family Potamogalidae: otter shrews


otter shrew: amphibious African insectivorous mammal that resembles an otter


potamogale: amphibious African insectivorous mammal that resembles an otter


Potamogale velox: amphibious African insectivorous mammal that resembles an otter


chine: backbone of an animal


saddle: posterior part of the back of a domestic fowl


furcula: a forked bone formed by the fusion of the clavicles of most birds


wishbone: the furcula of a domestic fowl


wishing bone: the furcula of a domestic fowl


cuticula: the outer body wall of an insect


hide: body covering of a living animal


pelt: body covering of a living animal


skin: body covering of a living animal


hypodermis: layer of cells that secretes the chitinous cuticle in e.g. arthropods


feather: the light horny waterproof structure forming the external covering of birds


plume: the light horny waterproof structure forming the external covering of birds


plumage: the light horny waterproof structure forming the external covering of birds


down: soft fine feathers


down feather: soft fine feathers


duck down: down of the duck


eiderdown: down of the eider duck


goose down: down of the goose


swan's down: down of the swan


plumule: down feather of young birds; persists in some adult birds


aftershaft: a supplementary feather (usually small) on the underside of the base of the shaft of some feathers in some birds


sickle feather: one of the long curved tail feathers of a rooster


contour feather: feathers covering the body of an adult bird and determining its shape


bastard wing: tuft of small stiff feathers on the first digit of a bird's wing


alula: tuft of small stiff feathers on the first digit of a bird's wing


spurious wing: tuft of small stiff feathers on the first digit of a bird's wing


marabou: the downy feathers of marabou storks are used for trimming garments


vane: the flattened weblike part of a feather consisting of a series of barbs on either side of the shaft


web: the flattened weblike part of a feather consisting of a series of barbs on either side of the shaft


barb: one of the parallel filaments projecting from the main shaft of a feather


web: membrane connecting the toes of some aquatic birds and mammals


hackle: long slender feather on the necks of e.g. turkeys and pheasants


saddle hackle: a long narrow feather on the back (saddle) of a domestic fowl


saddle feather: a long narrow feather on the back (saddle) of a domestic fowl


coat: growth of hair or wool or fur covering the body of an animal


pelage: growth of hair or wool or fur covering the body of an animal


guard hair: coarse hairs that form the outer fur and protect the underfur of certain mammals


fur: dense coat of fine silky hairs on mammals (e.g., cat or seal or weasel)


undercoat: thick soft fur lying beneath the longer and coarser guard hair


underfur: thick soft fur lying beneath the longer and coarser guard hair


underpart: a part lying on the lower side or underneath an animal's body


wool: outer coat of especially sheep and yaks


fleece: outer coat of especially sheep and yaks


mane: long coarse hair growing from the crest of the animal's neck


encolure: the mane of a horse


forelock: a lock of a horse's mane that grows forward between the ears


foretop: a lock of a horse's mane that grows forward between the ears


hair: a filamentous projection or process on an organism


cirrus: a slender flexible animal appendage as on barnacles or crinoids or many insects; often tactile


spine: a sharp rigid animal process or appendage; as a porcupine quill or a ridge on a bone or a ray of a fish fin


ray: any of the stiff bony spines in the fin of a fish


quill: a stiff hollow protective spine on a porcupine or hedgehog


aculea: small spiny outgrowth on the wings of certain insects


aculeus: a sharp-pointed process especially a sting of a hymenopterous insect


style: a slender bristlelike or tubular process


stylet: small needlelike appendage; especially the feeding organ of a tardigrade


villus: a minute hairlike projection on mucous membrane


bristle: a stiff hair


chaeta: a stiff chitinous seta or bristle especially of an annelid worm


whisker: a long stiff hair growing from the snout or brow of most mammals as e.g. a cat


vibrissa: a long stiff hair growing from the snout or brow of most mammals as e.g. a cat


sensory hair: a long stiff hair growing from the snout or brow of most mammals as e.g. a cat


seta: a stiff hair or bristle


pilus: hairlike structure especially on the surface of a cell or microorganism


horseback: the back of a horse


operculum: a hard flap serving as a cover for (a) the gill slits in fishes or (b) the opening of the shell in certain gastropods when the body is retracted


protective covering: the tough natural covering of some organisms


armor: tough more-or-less rigid protective covering of an animal or plant


armour: tough more-or-less rigid protective covering of an animal or plant


scale: a flattened rigid plate forming part of the body covering of many animals


fish scale: scale of the kind that covers the bodies of fish


squama: a protective structure resembling a scale


scute: large bony or horny plate as on an armadillo or turtle or the underside of a snake


sclerite: hard plate or element of the exoskeleton of some arthropods


clypeus: a shield-like plate on the front of an insect's head


carapace: hard outer covering or case of certain organisms such as arthropods and turtles


shell: hard outer covering or case of certain organisms such as arthropods and turtles


cuticle: hard outer covering or case of certain organisms such as arthropods and turtles


shield: hard outer covering or case of certain organisms such as arthropods and turtles


plastron: (zoology) the part of a turtle's shell forming its underside


shell: the hard largely calcareous covering of a mollusc or a brachiopod


valve: one of the paired hinged shells of certain molluscs and of brachiopods


valve: the entire one-piece shell of a snail and certain other molluscs


test: a hard outer covering as of some amoebas and sea urchins


scallop shell: a shell of a scallop


oyster shell: a shell of an oyster


phragmocone: the thin conical chambered internal shell (either straight or curved) of a belemnite


phragmacone: the thin conical chambered internal shell (either straight or curved) of a belemnite


apodeme: ridge-like ingrowth of the exoskeleton of an arthropod that supports internal organs and provides attachment points for muscles


theca: outer sheath of the pupa of certain insects


lorica: a hard protective sheath (as secreted by certain protoctists, for example)


coelenteron: the saclike body cavity of a coelenterate


invertebrate: any animal lacking a backbone or notochord; the term is not used as a scientific classification


zoophyte: any of various invertebrate animals resembling a plant such as a sea anemone or coral or sponge


Parazoa: multicellular organisms having less-specialized cells than in the Metazoa; comprises the single phylum Porifera


subkingdom Parazoa: multicellular organisms having less-specialized cells than in the Metazoa; comprises the single phylum Porifera


Porifera: coextensive with the subkingdom Parazoa: sponges


phylum Porifera: coextensive with the subkingdom Parazoa: sponges


sponge: primitive multicellular marine animal whose porous body is supported by a fibrous skeletal framework; usually occurs in sessile colonies


poriferan: primitive multicellular marine animal whose porous body is supported by a fibrous skeletal framework; usually occurs in sessile colonies


parazoan: primitive multicellular marine animal whose porous body is supported by a fibrous skeletal framework; usually occurs in sessile colonies


sponge genus: a genus of Porifera


flagellated cell: any cell or one-celled organism equipped with a flagellum


choanocyte: any of the flagellated cells in sponges having a collar of cytoplasm around the flagellum; they maintain a flow of water through the body


collar cell: any of the flagellated cells in sponges having a collar of cytoplasm around the flagellum; they maintain a flow of water through the body


Hyalospongiae: sponges with siliceous spicules that have six rays; choanocytes are restricted to finger-shaped chambers


class Hyalospongiae: sponges with siliceous spicules that have six rays; choanocytes are restricted to finger-shaped chambers


glass sponge: a siliceous sponge (with glassy spicules) of the class Hyalospongiae


Euplectella: a genus of Hyalospongiae


genus Euplectella: a genus of Hyalospongiae


Venus's flower basket: a deep-water marine sponge having a cylindrical skeleton of intricate glassy latticework; found in the waters of the East Indies and the eastern coast of Asia


coelenterate family: a family of coelenterates


coelenterate genus: a genus of coelenterates


Metazoa: multicellular animals having cells differentiated into tissues and organs and usually a digestive cavity and nervous system


subkingdom Metazoa: multicellular animals having cells differentiated into tissues and organs and usually a digestive cavity and nervous system


metazoan: any animal of the subkingdom Metazoa; all animals except protozoans and sponges


Cnidaria: hydras; polyps; jellyfishes; sea anemones; corals


phylum Cnidaria: hydras; polyps; jellyfishes; sea anemones; corals


Coelenterata: hydras; polyps; jellyfishes; sea anemones; corals


phylum Coelenterata: hydras; polyps; jellyfishes; sea anemones; corals


coelenterate: radially symmetrical animals having saclike bodies with only one opening and tentacles with stinging structures; they occur in polyp and medusa forms


cnidarian: radially symmetrical animals having saclike bodies with only one opening and tentacles with stinging structures; they occur in polyp and medusa forms


planula: the flat ciliated free-swimming larva of hydrozoan coelenterates


polyp: one of two forms that coelenterates take (e.g. a hydra or coral): usually sedentary with a hollow cylindrical body usually with a ring of tentacles around the mouth


medusa: one of two forms that coelenterates take: it is the free-swimming sexual phase in the life cycle of a coelenterate; in this phase it has a gelatinous umbrella-shaped body and tentacles


medusoid: one of two forms that coelenterates take: it is the free-swimming sexual phase in the life cycle of a coelenterate; in this phase it has a gelatinous umbrella-shaped body and tentacles


medusan: one of two forms that coelenterates take: it is the free-swimming sexual phase in the life cycle of a coelenterate; in this phase it has a gelatinous umbrella-shaped body and tentacles


Scyphozoa: coelenterates in which the polyp stage is absent or at least inconspicuous: jellyfishes


class Scyphozoa: coelenterates in which the polyp stage is absent or at least inconspicuous: jellyfishes


jellyfish: any of numerous usually marine and free-swimming coelenterates that constitute the sexually reproductive forms of hydrozoans and scyphozoans


Aegina: small medusa


scyphozoan: any of various usually free-swimming marine coelenterates having a gelatinous medusoid stage as the dominant phase of its life cycle


Chrysaora: a genus of Scyphozoa


genus Chrysaora: a genus of Scyphozoa


Chrysaora quinquecirrha: a type of jellyfish


Hydrozoa: coelenterates typically having alternation of generations; hydroid phase is usually colonial giving rise to the medusoid phase by budding: hydras and jellyfishes


class Hydrozoa: coelenterates typically having alternation of generations; hydroid phase is usually colonial giving rise to the medusoid phase by budding: hydras and jellyfishes


hydrozoan: colonial coelenterates having the polyp phase dominant


hydroid: colonial coelenterates having the polyp phase dominant


genus Hydra: hydras


hydra: small tubular solitary freshwater hydrozoan polyp


Siphonophora: marine colonial hydrozoans


order Siphonophora: marine colonial hydrozoans


siphonophore: a floating or swimming oceanic colony of polyps often transparent or showily colored


genus Nanomia: a genus of Siphonophora


nanomia: small creatures resembling pieces of fuzzy rope; each with a cluster of swimming bells serving as the head and long elastic tentacles for drawing in prey


Physalia: Portuguese man-of-war


genus Physalia: Portuguese man-of-war


Portuguese man-of-war: large siphonophore having a bladderlike float and stinging tentacles


man-of-war: large siphonophore having a bladderlike float and stinging tentacles


jellyfish: large siphonophore having a bladderlike float and stinging tentacles


praya: colonial siphonophore of up to 130 ft long


apolemia: large siphonophore of up to 50 ft long


Sertularia: sessile hydroid that forms feathery colonies


genus Sertularia: sessile hydroid that forms feathery colonies


sertularian: feathery colony of long-branched stems bearing stalkless paired polyps


Anthozoa: a large class of sedentary marine coelenterates that includes sea anemones and corals; the medusoid phase is entirely suppressed


class Anthozoa: a large class of sedentary marine coelenterates that includes sea anemones and corals; the medusoid phase is entirely suppressed


Actinozoa: a large class of sedentary marine coelenterates that includes sea anemones and corals; the medusoid phase is entirely suppressed


class Actinozoa: a large class of sedentary marine coelenterates that includes sea anemones and corals; the medusoid phase is entirely suppressed


anthozoan: sessile marine coelenterates including solitary and colonial polyps; the medusoid phase is entirely suppressed


actinozoan: sessile marine coelenterates including solitary and colonial polyps; the medusoid phase is entirely suppressed


Actiniaria: sea anemones


order Actiniaria: sea anemones


Actinaria: sea anemones


order Actinaria: sea anemones


sea anemone: marine polyps that resemble flowers but have oral rings of tentacles; differ from corals in forming no hard skeleton


anemone: marine polyps that resemble flowers but have oral rings of tentacles; differ from corals in forming no hard skeleton


actinia: any sea anemone or related animal


actinian: any sea anemone or related animal


actiniarian: any sea anemone or related animal


Actinia: a genus of sea anemone common in rock pools


genus Actinia: a genus of sea anemone common in rock pools


Alcyonaria: corals and sea anemones having eight branches


order Alcyonaria: corals and sea anemones having eight branches


Alcyonacea: comprising the soft corals


suborder Alcyonacea: comprising the soft corals


Pennatulidae: sea pens


family Pennatulidae: sea pens


Pennatula: type genus of the family Pennatulidae: sea pens


genus Pennatula: type genus of the family Pennatulidae: sea pens


sea pen: fleshy featherlike warm-water colonies


coral: marine colonial polyp characterized by a calcareous skeleton; masses in a variety of shapes often forming reefs


Gorgonacea: red corals and sea fans


suborder Gorgonacea: red corals and sea fans


Gorgoniacea: red corals and sea fans


suborder Gorgoniacea: red corals and sea fans


gorgonian: corals having a horny or calcareous branching skeleton


gorgonian coral: corals having a horny or calcareous branching skeleton


sea feather: corals forming featherlike colonies


sea fan: corals having a treelike or fan-shaped horny skeleton


red coral: corals of especially the Mediterranean having pink or red color used for ornaments and jewelry


Madreporaria: stony corals


order Madreporaria: stony corals


stony coral: corals having calcareous skeletons aggregations of which form reefs and islands


madrepore: corals having calcareous skeletons aggregations of which form reefs and islands


madriporian coral: corals having calcareous skeletons aggregations of which form reefs and islands


Maeandra: brain corals


genus Maeandra: brain corals


brain coral: massive reef-building coral having a convoluted and furrowed surface


Acropora: coelenterate genus of order Madreporaria, including staghorn corals


genus Acropora: coelenterate genus of order Madreporaria, including staghorn corals


staghorn coral: large branching coral resembling antlers


stag's-horn coral: large branching coral resembling antlers


Fungia: a genus comprising the usual mushroom corals


genus Fungia: a genus comprising the usual mushroom corals


mushroom coral: flattened disk-shaped stony coral (usually solitary and unattached)


ctenophore family: a family of ctenophores


ctenophore genus: a genus of ctenophores


Ctenophora: comb jellies; sea acorns; a small phylum formerly considered a class of Coelenterata


phylum Ctenophora: comb jellies; sea acorns; a small phylum formerly considered a class of Coelenterata


ctene: a locomotor organ consisting of a row of strong cilia whose bases are fused


comb-plate: a locomotor organ consisting of a row of strong cilia whose bases are fused


ctenophore: biradially symmetrical hermaphroditic solitary marine animals resembling jellyfishes having for locomotion eight rows of cilia arranged like teeth in a comb


comb jelly: biradially symmetrical hermaphroditic solitary marine animals resembling jellyfishes having for locomotion eight rows of cilia arranged like teeth in a comb


Nuda: ctenophores lacking tentacles; comprises one genus: beroe


class Nuda: ctenophores lacking tentacles; comprises one genus: beroe


genus Beroe: coextensive with the class Nuda


beroe: delicately iridescent thimble-shaped ctenophores


Tentaculata: ctenophores have retractile tentacles


class Tentaculata: ctenophores have retractile tentacles


Cydippida: ctenophores having two long pinnate tentacles


order Cydippida: ctenophores having two long pinnate tentacles


Cydippidea: ctenophores having two long pinnate tentacles


order Cydippidea: ctenophores having two long pinnate tentacles


Cydippea: ctenophores having two long pinnate tentacles


order Cydippea: ctenophores having two long pinnate tentacles


Platyctenea: an order of Tentaculata


order Platyctenea: an order of Tentaculata


platyctenean: ctenophore have long tentacles and flattened body


Pleurobrachiidae: sea gooseberries


family Pleurobrachiidae: sea gooseberries


Pleurobrachia: sea gooseberries


genus Pleurobrachia: sea gooseberries


sea gooseberry: ctenophore having a rounded body with longitudinal rows of cilia


Cestida: ctenophore having short tentacles; one family


order Cestida: ctenophore having short tentacles; one family


Cestidae: coextensive with the order Cestida; ctenophores having a greatly flattened and elongated body


family Cestidae: coextensive with the order Cestida; ctenophores having a greatly flattened and elongated body


Cestum: Venus's girdle


genus Cestum: Venus's girdle


Venus's girdle: ctenophore having a ribbon-shaped iridescent gelatinous body


Cestum veneris: ctenophore having a ribbon-shaped iridescent gelatinous body


Lobata: ctenophore having tentacles only in the immature stage; body compressed vertically having two large oral lobes and four pointed processes


order Lobata: ctenophore having tentacles only in the immature stage; body compressed vertically having two large oral lobes and four pointed processes


comb: ciliated comb-like swimming plate of a ctenophore


worm family: a family of worms


worm genus: a genus of worms


worm: any of numerous relatively small elongated soft-bodied animals especially of the phyla Annelida and Chaetognatha and Nematoda and Nemertea and Platyhelminthes; also many insect larvae


helminth: worm that is parasitic on the intestines of vertebrates especially roundworms and tapeworms and flukes


parasitic worm: worm that is parasitic on the intestines of vertebrates especially roundworms and tapeworms and flukes


woodworm: a larva of a woodborer


woodborer: any of various insects or larvae or mollusks that bore into wood


borer: any of various insects or larvae or mollusks that bore into wood


Acanthocephala: phylum or class of elongated wormlike parasites that live in the intestines of vertebrates: spiny-headed worms


phylum Acanthocephala: phylum or class of elongated wormlike parasites that live in the intestines of vertebrates: spiny-headed worms


acanthocephalan: any of various worms living parasitically in intestines of vertebrates having a retractile proboscis covered with many hooked spines


spiny-headed worm: any of various worms living parasitically in intestines of vertebrates having a retractile proboscis covered with many hooked spines


Chaetognatha: arrowworms: a group of small active transparent marine worms


phylum Chaetognatha: arrowworms: a group of small active transparent marine worms


arrowworm: any worm of the Chaetognatha; transparent marine worm with horizontal lateral and caudal fins and a row of movable curved spines at each side of the mouth


chaetognath: any worm of the Chaetognatha; transparent marine worm with horizontal lateral and caudal fins and a row of movable curved spines at each side of the mouth


genus Sagitta: chief genus of Chaetognatha including the largest arrowworms


sagitta: any arrowworm of the genus Sagitta


genus Spadella: marine worms resembling the sagittas but with a broader body and only one pair of lateral fins


Platyhelminthes: flatworms


phylum Platyhelminthes: flatworms


bladder worm: encysted saclike larva of the tapeworm


flatworm: parasitic or free-living worms having a flattened body


platyhelminth: parasitic or free-living worms having a flattened body


Turbellaria: free-living flatworms


class Turbellaria: free-living flatworms


planarian: free-swimming mostly freshwater flatworms; popular in laboratory studies for the ability to regenerate lost parts


planaria: free-swimming mostly freshwater flatworms; popular in laboratory studies for the ability to regenerate lost parts


Trematoda: parasitic flatworms (including flukes)


class Trematoda: parasitic flatworms (including flukes)


fluke: parasitic flatworms having external suckers for attaching to a host


trematode: parasitic flatworms having external suckers for attaching to a host


trematode worm: parasitic flatworms having external suckers for attaching to a host


cercaria: tadpole-shaped parasitic larva of a trematode worm; tail disappears in adult stage


Fasciolidae: a family of Trematoda


family Fasciolidae: a family of Trematoda


Fasciola: a genus of Fasciolidae


genus Fasciola: a genus of Fasciolidae


liver fluke: flatworm parasitic in liver and bile ducts of domestic animals and humans


Fasciola hepatica: flatworm parasitic in liver and bile ducts of domestic animals and humans


Fasciolopsis: a genus of Fasciolidae


genus Fasciolopsis: a genus of Fasciolidae


Fasciolopsis buski: fluke that is parasitic on humans and swine; common in eastern Asia


Schistosomatidae: a family of Trematoda


family Schistosomatidae: a family of Trematoda


Schistosoma: type genus of the family Schistosomatidae: blood flukes


genus Schistosoma: type genus of the family Schistosomatidae: blood flukes


schistosome: flatworms parasitic in the blood vessels of mammals


blood fluke: flatworms parasitic in the blood vessels of mammals


Cestoda: tapeworms


class Cestoda: tapeworms


tapeworm: ribbonlike flatworms that are parasitic in the intestines of humans and other vertebrates


cestode: ribbonlike flatworms that are parasitic in the intestines of humans and other vertebrates


Taeniidae: a family of Cestoda


family Taeniidae: a family of Cestoda


genus Echinococcus: tapeworms


echinococcus: tapeworms whose larvae are parasitic in humans and domestic animals


genus Taenia: type genus of the family Taeniidae: tapeworms


taenia: tapeworms parasitic in humans which uses the pig as its intermediate host


Nemertea: proboscis worms


phylum Nemertea: proboscis worms


Nemertina: proboscis worms


phylum Nemertina: proboscis worms


ribbon worm: soft unsegmented marine worms that have a threadlike proboscis and the ability to stretch and contract


nemertean: soft unsegmented marine worms that have a threadlike proboscis and the ability to stretch and contract


nemertine: soft unsegmented marine worms that have a threadlike proboscis and the ability to stretch and contract


proboscis worm: soft unsegmented marine worms that have a threadlike proboscis and the ability to stretch and contract


Pogonophora: beard worms


phylum Pogonophora: beard worms


beard worm: slender animal with tentacles and a tubelike outer covering; lives on the deep ocean bottom


pogonophoran: slender animal with tentacles and a tubelike outer covering; lives on the deep ocean bottom


Rotifera: a phylum including: rotifers


phylum Rotifera: a phylum including: rotifers


rotifer: minute aquatic multicellular organisms having a ciliated wheel-like organ for feeding and locomotion; constituents of freshwater plankton


Nematoda: unsegmented worms: roundworms; threadworms; eelworms


phylum Nematoda: unsegmented worms: roundworms; threadworms; eelworms


Aschelminthes: unsegmented worms: roundworms; threadworms; eelworms


phylum Aschelminthes: unsegmented worms: roundworms; threadworms; eelworms


Aphasmidia: one of two subgroups of Nematoda used in some classification systems


class Aphasmidia: one of two subgroups of Nematoda used in some classification systems


Phasmidia: one of two subgroups of Nematoda used in some classification systems


class Phasmidia: one of two subgroups of Nematoda used in some classification systems


nematode: unsegmented worms with elongated rounded body pointed at both ends; mostly free-living but some are parasitic


nematode worm: unsegmented worms with elongated rounded body pointed at both ends; mostly free-living but some are parasitic


roundworm: unsegmented worms with elongated rounded body pointed at both ends; mostly free-living but some are parasitic


Ascaridae: large roundworms parasitic in intestines of vertebrates


family Ascaridae: large roundworms parasitic in intestines of vertebrates


Ascaris: type genus of the family Ascaridae: roundworms with a three-lipped mouth


genus Ascaris: type genus of the family Ascaridae: roundworms with a three-lipped mouth


common roundworm: intestinal parasite of humans and pigs


Ascaris lumbricoides: intestinal parasite of humans and pigs


Ascaridia: roundworm having a preanal sucker


genus Ascaridia: roundworm having a preanal sucker


chicken roundworm: intestinal parasite of domestic fowl


Ascaridia galli: intestinal parasite of domestic fowl


Oxyuridae: pinworms


family Oxyuridae: pinworms


Enterobius: pinworms


genus Enterobius: pinworms


pinworm: small threadlike worm infesting human intestines and rectum especially in children


threadworm: small threadlike worm infesting human intestines and rectum especially in children


Enterobius vermicularis: small threadlike worm infesting human intestines and rectum especially in children


eelworm: any of various small free-living plant-parasitic roundworms


Cephalobidae: a family of Nematoda


family Cephalobidae: a family of Nematoda


Anguillula: a genus of Cephalobidae


genus Anguillula: a genus of Cephalobidae


Turbatrix: a genus of Cephalobidae


genus Turbatrix: a genus of Cephalobidae


vinegar eel: minute eelworm that feeds on organisms that cause fermentation in e.g. vinegar


vinegar worm: minute eelworm that feeds on organisms that cause fermentation in e.g. vinegar


Anguillula aceti: minute eelworm that feeds on organisms that cause fermentation in e.g. vinegar


Turbatrix aceti: minute eelworm that feeds on organisms that cause fermentation in e.g. vinegar


Tylenchidae: a family of Nematoda


family Tylenchidae: a family of Nematoda


Tylenchus: type genus of the family Tylenchidae


genus Tylenchus: type genus of the family Tylenchidae


wheatworm: small roundworm parasitic on wheat


wheat eel: small roundworm parasitic on wheat


wheat eelworm: small roundworm parasitic on wheat


Tylenchus tritici: small roundworm parasitic on wheat


Ancylostomatidae: hookworms


family Ancylostomatidae: hookworms


trichina: parasitic nematode occurring in the intestines of pigs and rats and human beings and producing larvae that form cysts in skeletal muscles


Trichinella spiralis: parasitic nematode occurring in the intestines of pigs and rats and human beings and producing larvae that form cysts in skeletal muscles


hookworm: parasitic bloodsucking roundworms having hooked mouth parts to fasten to the intestinal wall of human and other hosts


Filariidae: threadlike roundworms


family Filariidae: threadlike roundworms


filaria: slender threadlike roundworms living in the blood and tissues of vertebrates; transmitted as larvae by biting insects


Dracunculidae: greatly elongated roundworm


family Dracunculidae: greatly elongated roundworm


Dracunculus: type genus of the family Dracunculidae


genus Dracunculus: type genus of the family Dracunculidae


Guinea worm: parasitic roundworm of India and Africa that lives in the abdomen or beneath the skin of humans and other vertebrates


Dracunculus medinensis: parasitic roundworm of India and Africa that lives in the abdomen or beneath the skin of humans and other vertebrates


Annelida: segmented worms: earthworms; lugworms; leeches


phylum Annelida: segmented worms: earthworms; lugworms; leeches


annelid: worms with cylindrical bodies segmented both internally and externally


annelid worm: worms with cylindrical bodies segmented both internally and externally


segmented worm: worms with cylindrical bodies segmented both internally and externally


Archiannelida: a class of Annelida


class Archiannelida: a class of Annelida


archiannelid: small primitive marine worm lacking external segmentation and resembling polychaete larvae


Oligochaeta: earthworms


class Oligochaeta: earthworms


oligochaete: hermaphroditic terrestrial and aquatic annelids having bristles borne singly along the length of the body


oligochaete worm: hermaphroditic terrestrial and aquatic annelids having bristles borne singly along the length of the body


earthworm: terrestrial worm that burrows into and helps aerate soil; often surfaces when the ground is cool or wet; used as bait by anglers


angleworm: terrestrial worm that burrows into and helps aerate soil; often surfaces when the ground is cool or wet; used as bait by anglers


fishworm: terrestrial worm that burrows into and helps aerate soil; often surfaces when the ground is cool or wet; used as bait by anglers


fishing worm: terrestrial worm that burrows into and helps aerate soil; often surfaces when the ground is cool or wet; used as bait by anglers


wiggler: terrestrial worm that burrows into and helps aerate soil; often surfaces when the ground is cool or wet; used as bait by anglers


nightwalker: terrestrial worm that burrows into and helps aerate soil; often surfaces when the ground is cool or wet; used as bait by anglers


nightcrawler: terrestrial worm that burrows into and helps aerate soil; often surfaces when the ground is cool or wet; used as bait by anglers


crawler: terrestrial worm that burrows into and helps aerate soil; often surfaces when the ground is cool or wet; used as bait by anglers


dew worm: terrestrial worm that burrows into and helps aerate soil; often surfaces when the ground is cool or wet; used as bait by anglers


red worm: terrestrial worm that burrows into and helps aerate soil; often surfaces when the ground is cool or wet; used as bait by anglers


Branchiobdellidae: small annelid worms with the posterior end modified into an adhesive sucker; especially formerly regarded as modified leeches


family Branchiobdellidae: small annelid worms with the posterior end modified into an adhesive sucker; especially formerly regarded as modified leeches


Branchiobdella: type genus of the Branchiobdellidae: a small worm that lives on the gills or surface of a crayfish attached by a sucker


genus Branchiobdella: type genus of the Branchiobdellidae: a small worm that lives on the gills or surface of a crayfish attached by a sucker


Polychaeta: marine annelid worms


class Polychaeta: marine annelid worms


polychaete: chiefly marine annelids possessing both sexes and having paired appendages (parapodia) bearing bristles


polychete: chiefly marine annelids possessing both sexes and having paired appendages (parapodia) bearing bristles


polychaete worm: chiefly marine annelids possessing both sexes and having paired appendages (parapodia) bearing bristles


polychete worm: chiefly marine annelids possessing both sexes and having paired appendages (parapodia) bearing bristles


lugworm: marine worms having a row of tufted gills along each side of the back; often used for fishing bait


lug: marine worms having a row of tufted gills along each side of the back; often used for fishing bait


lobworm: marine worms having a row of tufted gills along each side of the back; often used for fishing bait


sea mouse: any of several large worms having a broad flattened body with a mat of coarse hairs covering the back


Terebellidae: marine burrowing or tube-forming polychete worms usually having long thick bodies


family Terebellidae: marine burrowing or tube-forming polychete worms usually having long thick bodies


Terebella: type genus of Terebellidae; tube-forming marine polychete worms with many filamentous tentacles


genus Terebella: type genus of Terebellidae; tube-forming marine polychete worms with many filamentous tentacles


Polycirrus: genus of soft-bodied polychete marine worms


genus Polycirrus: genus of soft-bodied polychete marine worms


bloodworm: a segmented marine worm with bright red body; often used for bait


Hirudinea: hermaphroditic aquatic or terrestrial or parasitic annelids


class Hirudinea: hermaphroditic aquatic or terrestrial or parasitic annelids


leech: carnivorous or bloodsucking aquatic or terrestrial worms typically having a sucker at each end


bloodsucker: carnivorous or bloodsucking aquatic or terrestrial worms typically having a sucker at each end


hirudinean: carnivorous or bloodsucking aquatic or terrestrial worms typically having a sucker at each end


Hirudinidae: a family of Hirudinea


family Hirudinidae: a family of Hirudinea


Hirudo: type genus of the family Hirudinidae


genus Hirudo: type genus of the family Hirudinidae


medicinal leech: large European freshwater leech formerly used for bloodletting


Hirudo medicinalis: large European freshwater leech formerly used for bloodletting


Haemopis: leeches


genus Haemopis: leeches


horseleech: any of several large freshwater leeches


mollusk family: a family of mollusks


mollusk genus: a genus of mollusks


Mollusca: gastropods; bivalves; cephalopods; chitons


phylum Mollusca: gastropods; bivalves; cephalopods; chitons


mollusk: invertebrate having a soft unsegmented body usually enclosed in a shell


mollusc: invertebrate having a soft unsegmented body usually enclosed in a shell


shellfish: invertebrate having a soft unsegmented body usually enclosed in a shell


Scaphopoda: small class of bilaterally symmetrical marine forms comprising the tooth shells


class Scaphopoda: small class of bilaterally symmetrical marine forms comprising the tooth shells


scaphopod: burrowing marine mollusk


tooth shell: any of various seashore mollusks having a tapering tubular shell open at each end and a foot pointed like a spade for burrowing


tusk shell: any of various seashore mollusks having a tapering tubular shell open at each end and a foot pointed like a spade for burrowing


lip: either the outer margin or the inner margin of the aperture of a gastropod's shell


Gastropoda: snails and slugs and their relatives


class Gastropoda: snails and slugs and their relatives


Gasteropoda: snails and slugs and their relatives


class Gasteropoda: snails and slugs and their relatives


gastropod: a class of mollusks typically having a one-piece coiled shell and flattened muscular foot with a head bearing stalked eyes


univalve: a class of mollusks typically having a one-piece coiled shell and flattened muscular foot with a head bearing stalked eyes


Haliotidae: abalones


family Haliotidae: abalones


Haliotis: type genus of the family Haliotidae


genus Haliotis: type genus of the family Haliotidae


abalone: any of various large edible marine gastropods of the genus Haliotis having an ear-shaped shell with pearly interior


ear-shell: any of various large edible marine gastropods of the genus Haliotis having an ear-shaped shell with pearly interior


ormer: an abalone found near the Channel Islands


sea-ear: an abalone found near the Channel Islands


Haliotis tuberculata: an abalone found near the Channel Islands


Strombidae: the family of conchs


family Strombidae: the family of conchs


Lambis: scorpion shells of shallow tropical waters of the eastern hemisphere


genus Lambis: scorpion shells of shallow tropical waters of the eastern hemisphere


scorpion shell: any of numerous tropical marine snails that as adults have the outer lip of the aperture produced into a series of long curved spines


Strombus: type genus of the family Strombidae


genus Strombus: type genus of the family Strombidae


conch: any of various edible tropical marine gastropods of the genus Strombus having a brightly-colored spiral shell with large outer lip


giant conch: a large variety of conch


Strombus gigas: a large variety of conch


Helicidae: land snails including the common edible snail and some pests


family Helicidae: land snails including the common edible snail and some pests


snail: freshwater or marine or terrestrial gastropod mollusk usually having an external enclosing spiral shell


Helix: type genus of the family Helicidae


genus Helix: type genus of the family Helicidae


edible snail: one of the chief edible snails


Helix pomatia: one of the chief edible snails


garden snail: any of several inedible snails of the genus Helix; often destructive pests


brown snail: serious garden pest having a brown shell with paler zigzag markings; nearly cosmopolitan in distribution


Helix aspersa: serious garden pest having a brown shell with paler zigzag markings; nearly cosmopolitan in distribution


Helix hortensis: a kind of garden snail


Limacidae: slugs


family Limacidae: slugs


Limax: a genus of Limacidae


genus Limax: a genus of Limacidae


slug: any of various terrestrial gastropods having an elongated slimy body and no external shell


seasnail: any of several creeping marine gastropods with a spirally coiled shell: whelks; tritons; moon shells; neritids


Neritidae: neritids


family Neritidae: neritids


neritid: operculate seasnail of coastal waters with a short spiral shell


neritid gastropod: operculate seasnail of coastal waters with a short spiral shell


genus Nerita: type genus of the Neritidae


nerita: a neritid gastropod having a short smooth or spirally ridged shell with thick usually toothed outer lip and toothed operculum


bleeding tooth: gastropod having reddish toothlike projections around the shell opening; of the Caribbean area


Nerita peloronta: gastropod having reddish toothlike projections around the shell opening; of the Caribbean area


genus Neritina: a genus of Neritidae


neritina: ornately marked and brightly colored snails of brackish waters


Buccinidae: whelks


family Buccinidae: whelks


whelk: large carnivorous marine gastropods of coastal waters and intertidal regions having a strong snail-like shell


Cymatiidae: tritons


family Cymatiidae: tritons


triton: tropical marine gastropods having beautifully colored spiral shells


Naticidae: moonshells


family Naticidae: moonshells


moon shell: marine gastropods having smooth rounded shells that form short spires


moonshell: marine gastropods having smooth rounded shells that form short spires


Littorinidae: periwinkles


family Littorinidae: periwinkles


Littorina: type genus of the family Littorinidae: periwinkles


genus Littorina: type genus of the family Littorinidae: periwinkles


periwinkle: edible marine gastropod


winkle: edible marine gastropod


limpet: any of various usually marine gastropods with low conical shells; found clinging to rocks in littoral areas


Patellidae: marine limpets


family Patellidae: marine limpets


Patella: type genus of the family Patellidae: common European limpets


genus Patella: type genus of the family Patellidae: common European limpets


common limpet: marine limpet


Patella vulgata: marine limpet


Fissurellidae: marine limpets


family Fissurellidae: marine limpets


Fissurella: type genus of the family Fissurellidae: keyhole limpets


genus Fissurella: type genus of the family Fissurellidae: keyhole limpets


keyhole limpet: marine limpet having a conical shell with an opening at the apex


Fissurella apertura: marine limpet having a conical shell with an opening at the apex


Diodora apertura: marine limpet having a conical shell with an opening at the apex


Ancylidae: freshwater gastropod


family Ancylidae: freshwater gastropod


Ancylus: type genus of the family Ancylidae: river limpet


genus Ancylus: type genus of the family Ancylidae: river limpet


river limpet: minute conical gastropod superficially resembling a limpet but living and feeding on freshwater plants


freshwater limpet: minute conical gastropod superficially resembling a limpet but living and feeding on freshwater plants


Ancylus fluviatilis: minute conical gastropod superficially resembling a limpet but living and feeding on freshwater plants


Opisthobranchia: gastropods having the gills when present posterior to the heart and having no operculum: includes sea slugs; sea butterflies; sea hares


subclass Opisthobranchia: gastropods having the gills when present posterior to the heart and having no operculum: includes sea slugs; sea butterflies; sea hares


Nudibranchia: comprising numerous marine gastropod mollusks lacking a shell in the adult state and usually having a body like a slug


order Nudibranchia: comprising numerous marine gastropod mollusks lacking a shell in the adult state and usually having a body like a slug


sea slug: any of various marine gastropods of the suborder Nudibranchia having a shell-less and often beautifully colored body


nudibranch: any of various marine gastropods of the suborder Nudibranchia having a shell-less and often beautifully colored body


Aplysiidae: sea hares


family Aplysiidae: sea hares


Tethyidae: sea hares


family Tethyidae: sea hares


Aplysia: type genus of the family Aplysiidae


genus Aplysia: type genus of the family Aplysiidae


Tethys: type genus of the family Aplysiidae


genus Tethus: type genus of the family Aplysiidae


sea hare: naked marine gastropod having a soft body with reduced internal shell and two pairs of ear-like tentacles


Aplysia punctata: naked marine gastropod having a soft body with reduced internal shell and two pairs of ear-like tentacles


Hermissenda: genus of marine sea slugs


genus Hermissenda: genus of marine sea slugs


Hermissenda crassicornis: a kind of sea slug


Akeridae: bubble shells


family Akeridae: bubble shells


Haminoea: common genus of marine bubble shells of the Pacific coast of North America


genus Haminoea: common genus of marine bubble shells of the Pacific coast of North America


bubble shell: marine gastropod mollusk having a very small thin shell


Pulmonata: large order of gastropods usually breathing by means of a lung-like sac comprising most land snails and slugs and many freshwater snails


order Pulmonata: large order of gastropods usually breathing by means of a lung-like sac comprising most land snails and slugs and many freshwater snails


Physidae: freshwater snails


family Physidae: freshwater snails


genus Physa: type genus of the Physidae; freshwater air-breathing snails


physa: any member of the genus Physa


Pectinibranchia: large order of gastropods comprising univalve mollusks that have a single gill resembling a comb


order Pectinibranchia: large order of gastropods comprising univalve mollusks that have a single gill resembling a comb


Cypraeidae: family of marine gastropods comprising the cowries


family Cypraeidae: family of marine gastropods comprising the cowries


Cypraea: type genus of the family Cypraeidae: the typical cowries


genus Cypraea: type genus of the family Cypraeidae: the typical cowries


cowrie: any of numerous tropical marine gastropods of the genus Cypraea having highly polished usually brightly marked shells


cowry: any of numerous tropical marine gastropods of the genus Cypraea having highly polished usually brightly marked shells


money cowrie: cowrie whose shell is used for money in parts of the southern Pacific and in parts of Africa


Cypraea moneta: cowrie whose shell is used for money in parts of the southern Pacific and in parts of Africa


tiger cowrie: cowrie whose shell is used for ornament


Cypraea tigris: cowrie whose shell is used for ornament


ctenidium: comb-like respiratory structure serving as the gill of certain mollusks


ceras: one of the often brightly colored and branching hornlike structures on the back of the nudibranch (and other related mollusks) that serve as gills


Amphineura: a class of Gastropoda


subclass Amphineura: a class of Gastropoda


Solenogastres: an order of Amphineura


order Solenogastres: an order of Amphineura


Aplacophora: an order of Amphineura


order Aplacophora: an order of Amphineura


solenogaster: deep-water wormlike mollusks lacking calcareous plates on the body but having fine slimy spicules on the covering mantle


aplacophoran: deep-water wormlike mollusks lacking calcareous plates on the body but having fine slimy spicules on the covering mantle


Polyplacophora: small class of marine mollusks comprising the chitons; sometimes considered an order of the subclass Amphineura


class Polyplacophora: small class of marine mollusks comprising the chitons; sometimes considered an order of the subclass Amphineura


genus Chiton: a genus of Polyplacophora


chiton: primitive elongated bilaterally symmetrical marine mollusk having a mantle covered with eight calcareous plates


coat-of-mail shell: primitive elongated bilaterally symmetrical marine mollusk having a mantle covered with eight calcareous plates


sea cradle: primitive elongated bilaterally symmetrical marine mollusk having a mantle covered with eight calcareous plates


polyplacophore: primitive elongated bilaterally symmetrical marine mollusk having a mantle covered with eight calcareous plates


byssus: tuft of strong filaments by which e.g. a mussel makes itself fast to a fixed surface


beard: tuft of strong filaments by which e.g. a mussel makes itself fast to a fixed surface


Bivalvia: oysters; clams; scallops; mussels


class Bivalvia: oysters; clams; scallops; mussels


Lamellibranchia: oysters; clams; scallops; mussels


class Lamellibranchia: oysters; clams; scallops; mussels


class Pelecypoda: oysters; clams; scallops; mussels


bivalve: marine or freshwater mollusks having a soft body with platelike gills enclosed within two shells hinged together


pelecypod: marine or freshwater mollusks having a soft body with platelike gills enclosed within two shells hinged together


lamellibranch: marine or freshwater mollusks having a soft body with platelike gills enclosed within two shells hinged together


spat: a young oyster or other bivalve


clam: burrowing marine mollusk living on sand or mud; the shell closes with viselike firmness


seashell: the shell of a marine organism


clamshell: the shell of a clam


Myaceae: clams


order Myaceae: clams


Myacidae: soft-shell clams


family Myacidae: soft-shell clams


Mya: type genus of the family Myacidae


genus Mya: type genus of the family Myacidae


soft-shell clam: an edible clam with thin oval-shaped shell found in coastal regions of the United States and Europe


steamer: an edible clam with thin oval-shaped shell found in coastal regions of the United States and Europe


steamer clam: an edible clam with thin oval-shaped shell found in coastal regions of the United States and Europe


long-neck clam: an edible clam with thin oval-shaped shell found in coastal regions of the United States and Europe


Mya arenaria: an edible clam with thin oval-shaped shell found in coastal regions of the United States and Europe


Veneridae: hard-shell clams


family Veneridae: hard-shell clams


Venus: type genus of the family Veneridae: genus of edible clams with thick oval shells


genus Venus: type genus of the family Veneridae: genus of edible clams with thick oval shells


Mercenaria: a genus of Veneridae


genus Mercenaria: a genus of Veneridae


quahog: an edible American clam; the heavy shells were used as money by some American Indians


quahaug: an edible American clam; the heavy shells were used as money by some American Indians


hard-shell clam: an edible American clam; the heavy shells were used as money by some American Indians


hard clam: an edible American clam; the heavy shells were used as money by some American Indians


round clam: an edible American clam; the heavy shells were used as money by some American Indians


Venus mercenaria: an edible American clam; the heavy shells were used as money by some American Indians


Mercenaria mercenaria: an edible American clam; the heavy shells were used as money by some American Indians


littleneck: a young quahog


littleneck clam: a young quahog


cherrystone: a half-grown quahog


cherrystone clam: a half-grown quahog


geoduck: a large edible clam found burrowing deeply in sandy mud along the Pacific coast of North America; weighs up to six pounds; has siphons that can extend to several feet and cannot be withdrawn into the shell


Solenidae: razor clams


family Solenidae: razor clams


Ensis: razor clams


genus Ensis: razor clams


razor clam: marine clam having a long narrow curved thin shell


jackknife clam: marine clam having a long narrow curved thin shell


knife-handle: marine clam having a long narrow curved thin shell


Tridacnidae: large marine hard-shell clams


family Tridacnidae: large marine hard-shell clams


Tridacna: type genus of the family Tridacnidae: giant clams


genus Tridacna: type genus of the family Tridacnidae: giant clams


giant clam: a large clam inhabiting reefs in the southern Pacific and weighing up to 500 pounds


Tridacna gigas: a large clam inhabiting reefs in the southern Pacific and weighing up to 500 pounds


Cardiidae: somewhat heart-shaped sand-burrowing bivalve mollusks


family Cardiidae: somewhat heart-shaped sand-burrowing bivalve mollusks


Cardium: type genus of the family Cardiidae: cockles


genus Cardium: type genus of the family Cardiidae: cockles


cockle: common edible, burrowing European bivalve mollusk that has a strong, rounded shell with radiating ribs


edible cockle: common edible European cockle


Cardium edule: common edible European cockle


Ostreidae: oysters


family Ostreidae: oysters


oyster: marine mollusks having a rough irregular shell; found on the sea bed mostly in coastal waters


seed oyster: a young oyster especially of a size for transplantation


Ostrea: type genus of the family Ostreidae


genus Ostrea: type genus of the family Ostreidae


bluepoint: small edible oyster typically from the southern shore of Long Island


blue point: small edible oyster typically from the southern shore of Long Island


Japanese oyster: a large oyster native to Japan and introduced along the Pacific coast of the United States; a candidate for introduction in Chesapeake Bay


Ostrea gigas: a large oyster native to Japan and introduced along the Pacific coast of the United States; a candidate for introduction in Chesapeake Bay


Crassostrea: Virginia oysters


genus Crassostrea: Virginia oysters


Virginia oyster: common edible oyster of Atlantic coast of North America


Pteriidae: pearl oysters


family Pteriidae: pearl oysters


Pinctada: pearl oysters


genus Pinctada: pearl oysters


pearl oyster: tropical marine bivalve found chiefly off eastern Asia and Pacific coast of North America and Central America; a major source of pearls


Pinctada margaritifera: tropical marine bivalve found chiefly off eastern Asia and Pacific coast of North America and Central America; a major source of pearls


Anomiidae: saddle oysters


family Anomiidae: saddle oysters


Anomia: type genus of the family Anomiidae: saddle oysters


genus Anomia: type genus of the family Anomiidae: saddle oysters


saddle oyster: thin-shelled bivalve having the right valve deeply notched


Anomia ephippium: thin-shelled bivalve having the right valve deeply notched


Placuna: windowpane oysters


genus Placuna: windowpane oysters


window oyster: marine bivalve common in Philippine coastal waters characterized by a large thin flat translucent shell


windowpane oyster: marine bivalve common in Philippine coastal waters characterized by a large thin flat translucent shell


capiz: marine bivalve common in Philippine coastal waters characterized by a large thin flat translucent shell


Placuna placenta: marine bivalve common in Philippine coastal waters characterized by a large thin flat translucent shell


Arcidae: ark shells


family Arcidae: ark shells


Arca: type genus of the family Arcidae: ark shells and blood clams


genus Arca: type genus of the family Arcidae: ark shells and blood clams


ark shell: marine bivalve mollusk having a heavy toothed shell with a deep boat-like inner surface


blood clam: red-blooded clam


mussel: marine or freshwater bivalve mollusk that lives attached to rocks etc.


Mytilidae: marine mussels


family Mytilidae: marine mussels


Mytilus: type genus of the family Mytilidae: smooth-shelled marine mussels


genus Mytilus: type genus of the family Mytilidae: smooth-shelled marine mussels


marine mussel: marine bivalve mollusk having a dark elongated shell; live attached to solid objects especially in intertidal zones


mytilid: marine bivalve mollusk having a dark elongated shell; live attached to solid objects especially in intertidal zones


edible mussel: a mussel with a dark shell that lives attached to rocks


Mytilus edulis: a mussel with a dark shell that lives attached to rocks


freshwater mussel: bivalve mollusk abundant in rivers of central United States


freshwater clam: bivalve mollusk abundant in rivers of central United States


Unionidae: freshwater mussels found worldwide


family Unionidae: freshwater mussels found worldwide


Unio: type genus of the family Unionidae


genus Unio: type genus of the family Unionidae


pearly-shelled mussel: the pearly lining of the dark shells is a source of mother-of-pearl


Anodonta: thin-shelled freshwater mussels


genus Anodonta: thin-shelled freshwater mussels


thin-shelled mussel: mussel with thin fragile shells having only rudimentary hinge teeth


Dreissena: zebra mussels


genus Dreissena: zebra mussels


zebra mussel: inch long mollusk imported accidentally from Europe; clogs utility inlet pipes and feeds on edible freshwater mussels


Dreissena polymorpha: inch long mollusk imported accidentally from Europe; clogs utility inlet pipes and feeds on edible freshwater mussels


Pectinidae: scallops


family Pectinidae: scallops


scallop: edible marine bivalve having a fluted fan-shaped shell that swim by expelling water from the shell in a series of snapping motions


scollop: edible marine bivalve having a fluted fan-shaped shell that swim by expelling water from the shell in a series of snapping motions


escallop: edible marine bivalve having a fluted fan-shaped shell that swim by expelling water from the shell in a series of snapping motions


genus Pecten: type genus of the family Pectinidae: sea and bay scallops


bay scallop: a small scallop inhabiting shallow waters and mud flats of the Atlantic coast of North America


Pecten irradians: a small scallop inhabiting shallow waters and mud flats of the Atlantic coast of North America


sea scallop: a large scallop inhabiting deep waters of the Atlantic coast of North America


giant scallop: a large scallop inhabiting deep waters of the Atlantic coast of North America


Pecten magellanicus: a large scallop inhabiting deep waters of the Atlantic coast of North America


Teredinidae: shipworms


family Teredinidae: shipworms


genus Teredo: type genus of the family Teredinidae


shipworm: wormlike marine bivalve that bores into wooden piers and ships by means of drill-like shells


teredinid: wormlike marine bivalve that bores into wooden piers and ships by means of drill-like shells


teredo: typical shipworm


Bankia: giant shipworms


genus Bankia: giant shipworms


giant northwest shipworm: giant shipworm of the Pacific coast of North America


Bankia setaceae: giant shipworm of the Pacific coast of North America


Pholadidae: a family of Bivalvia


family Pholadidae: a family of Bivalvia


Pholas: type genus of the family Pholadidae: piddocks


genus Pholas: type genus of the family Pholadidae: piddocks


piddock: marine bivalve that bores into rock or clay or wood by means of saw-like shells


Cephalopoda: octopuses; squids; cuttlefish; pearly nautilus


class Cephalopoda: octopuses; squids; cuttlefish; pearly nautilus


cephalopod: marine mollusk characterized by well-developed head and eyes and sucker-bearing tentacles


cephalopod mollusk: marine mollusk characterized by well-developed head and eyes and sucker-bearing tentacles


Nautilidae: spiral-shelled cephalopods


family Nautilidae: spiral-shelled cephalopods


genus Nautilus: type genus and sole recent representative of the family Nautilidae


chambered nautilus: cephalopod of the Indian and Pacific oceans having a spiral shell with pale pearly partitions


pearly nautilus: cephalopod of the Indian and Pacific oceans having a spiral shell with pale pearly partitions


nautilus: cephalopod of the Indian and Pacific oceans having a spiral shell with pale pearly partitions


Dibranchiata: comprising all living cephalopods except the family Nautilidae: the orders Octopoda (octopuses) and Decapoda (squids and cuttlefish)


subclass Dibranchiata: comprising all living cephalopods except the family Nautilidae: the orders Octopoda (octopuses) and Decapoda (squids and cuttlefish)


Dibranchia: comprising all living cephalopods except the family Nautilidae: the orders Octopoda (octopuses) and Decapoda (squids and cuttlefish)


subclass Dibranchia: comprising all living cephalopods except the family Nautilidae: the orders Octopoda (octopuses) and Decapoda (squids and cuttlefish)


dibranchiate: cephalopods having two gills


dibranchiate mollusk: cephalopods having two gills


dibranch: cephalopods having two gills


Octopoda: octopuses and paper nautilus


order Octopoda: octopuses and paper nautilus


octopod: a cephalopod with eight arms but lacking an internal shell


Octopodidae: a family of Octopoda


family Octopodidae: a family of Octopoda


genus Octopus: type genus of the family Octopodidae


octopus: bottom-living cephalopod having a soft oval body with eight long tentacles


devilfish: bottom-living cephalopod having a soft oval body with eight long tentacles


Argonautidae: represented solely by the genus Argonauta


family Argonautidae: represented solely by the genus Argonauta


Argonauta: type genus of the family Argonautidae: paper nautilus


genus Argonauta: type genus of the family Argonautidae: paper nautilus


paper nautilus: cephalopod mollusk of warm seas whose females have delicate papery spiral shells


nautilus: cephalopod mollusk of warm seas whose females have delicate papery spiral shells


Argonaut: cephalopod mollusk of warm seas whose females have delicate papery spiral shells


Argonauta argo: cephalopod mollusk of warm seas whose females have delicate papery spiral shells


Decapoda: squids and cuttlefishes


order Decapoda: squids and cuttlefishes


decapod: cephalopods having eight short tentacles plus two long ones


squid: widely distributed fast-moving ten-armed cephalopod mollusk having a long tapered body with triangular tail fins


genus Loligo: squids


loligo: somewhat flattened cylindrical squid


genus Ommastrephes: a genus of Decapoda


ommastrephes: extremely active cylindrical squid with short strong arms and large rhombic terminal fins


genus Architeuthis: giant squid


architeuthis: largest mollusk known about but never seen (to 60 feet long)


giant squid: largest mollusk known about but never seen (to 60 feet long)


Sepiidae: true cuttlefishes


family Sepiidae: true cuttlefishes


Sepia: type genus of the Sepiidae


genus Sepia: type genus of the Sepiidae


cuttlefish: ten-armed oval-bodied cephalopod with narrow fins as long as the body and a large calcareous internal shell


cuttle: ten-armed oval-bodied cephalopod with narrow fins as long as the body and a large calcareous internal shell


Spirulidae: coextensive with the genus Spirula; included in the order Belemnoidea in some older classifications


family Spirulidae: coextensive with the genus Spirula; included in the order Belemnoidea in some older classifications


genus Spirula: genus of small cephalopods with many-chambered spiral shells resembling those of the extinct belemnites


spirula: a small tropical cephalopod of the genus Spirula having prominent eyes and short arms and a many-chambered shell coiled in a flat spiral


Spirula peronii: a small tropical cephalopod of the genus Spirula having prominent eyes and short arms and a many-chambered shell coiled in a flat spiral


Belemnoidea: order of extinct dibranchiate cephalopods related to the surviving spirulas


order Belemnoidea: order of extinct dibranchiate cephalopods related to the surviving spirulas


Belemnitidae: family of extinct Mesozoic cephalopods


family Belemnitidae: family of extinct Mesozoic cephalopods


belemnite: a conical calcareous fossil tapering to a point at one end and with a conical cavity at the other end containing (when unbroken) a small chambered phragmocone from the shell of any of numerous extinct cephalopods of the family Belemnitidae


craw: a pouch in many birds and some lower animals that resembles a stomach for storage and preliminary maceration of food


crop: a pouch in many birds and some lower animals that resembles a stomach for storage and preliminary maceration of food


gizzard: thick-walled muscular pouch below the crop in many birds and reptiles for grinding food


ventriculus: thick-walled muscular pouch below the crop in many birds and reptiles for grinding food


gastric mill: thick-walled muscular pouch below the crop in many birds and reptiles for grinding food


Crustacea: class of mandibulate arthropods including: lobsters; crabs; shrimps; woodlice; barnacles; decapods; water fleas


class Crustacea: class of mandibulate arthropods including: lobsters; crabs; shrimps; woodlice; barnacles; decapods; water fleas


crustacean: any mainly aquatic arthropod usually having a segmented body and chitinous exoskeleton


green gland: one of a pair of glands (believed to have excretory functions) in some crustaceans near the base of the large antennae


Malacostraca: largest subclass of Crustacea including most of the well-known marine, freshwater, and terrestrial crustaceans: crabs; lobsters; shrimps; sow bugs; beach flies


subclass Malacostraca: largest subclass of Crustacea including most of the well-known marine, freshwater, and terrestrial crustaceans: crabs; lobsters; shrimps; sow bugs; beach flies


malacostracan crustacean: a major subclass of crustaceans


Decapoda: lobsters; crayfish; crabs; shrimps; prawns


order Decapoda: lobsters; crayfish; crabs; shrimps; prawns


decapod crustacean: crustaceans characteristically having five pairs of locomotor appendages each joined to a segment of the thorax


decapod: crustaceans characteristically having five pairs of locomotor appendages each joined to a segment of the thorax


Brachyura: an order of crustaceans (including true crabs) having a reduced abdomen folded against the ventral surface


suborder Brachyura: an order of crustaceans (including true crabs) having a reduced abdomen folded against the ventral surface


brachyuran: typical crabs


crab: decapod having eyes on short stalks and a broad flattened carapace with a small abdomen folded under the thorax and pincers


Menippe: stone crabs


genus Menippe: stone crabs


stone crab: large edible crab of the southern coast of the United States (particularly Florida)


Menippe mercenaria: large edible crab of the southern coast of the United States (particularly Florida)


Cancridae: many of the best known edible crabs


family Cancridae: many of the best known edible crabs


Cancer: type genus of the family Cancridae


genus Cancer: type genus of the family Cancridae


hard-shell crab: edible crab that has not recently molted and so has a hard shell


soft-shell crab: edible crab that has recently molted and not yet formed its new shell


soft-shelled crab: edible crab that has recently molted and not yet formed its new shell


Dungeness crab: small edible crab of Pacific coast of North America


Cancer magister: small edible crab of Pacific coast of North America


rock crab: crab of eastern coast of North America


Cancer irroratus: crab of eastern coast of North America


Jonah crab: large red deep-water crab of the eastern coast of North America


Cancer borealis: large red deep-water crab of the eastern coast of North America


Portunidae: swimming crabs


family Portunidae: swimming crabs


swimming crab: marine crab with some legs flattened and fringed for swimming


Portunus: type genus of the family Portunidae


genus Portunus: type genus of the family Portunidae


English lady crab: crab of the English coasts


Portunus puber: crab of the English coasts


Ovalipes: a genus of Portunidae


genus Ovalipes: a genus of Portunidae


American lady crab: brightly spotted crab of sandy beaches of the Atlantic coast of the United States


lady crab: brightly spotted crab of sandy beaches of the Atlantic coast of the United States


calico crab: brightly spotted crab of sandy beaches of the Atlantic coast of the United States


Ovalipes ocellatus: brightly spotted crab of sandy beaches of the Atlantic coast of the United States


Callinectes: New World blue crabs


genus Callinectes: New World blue crabs


blue crab: bluish edible crab of Atlantic and Gulf Coasts of North America


Callinectes sapidus: bluish edible crab of Atlantic and Gulf Coasts of North America


Uca: fiddler crabs


genus Uca: fiddler crabs


fiddler crab: burrowing crab of American coastal regions having one claw much enlarged in the male


Pinnotheridae: tiny soft-bodied crabs


family Pinnotheridae: tiny soft-bodied crabs


Pinnotheres: type genus of the family Pinnotheridae: pea crabs


genus Pinnotheres: type genus of the family Pinnotheridae: pea crabs


pea crab: tiny soft-bodied crab living commensally in the mantles of certain bivalve mollusks


oyster crab: tiny soft-bodied crab living within the mantle cavity of oysters


Pinnotheres ostreum: tiny soft-bodied crab living within the mantle cavity of oysters


Lithodidae: deep-sea crabs of cold waters


family Lithodidae: deep-sea crabs of cold waters


Paralithodes: a genus of Lithodidae


genus Paralithodes: a genus of Lithodidae


king crab: large edible crab of northern Pacific waters especially along the coasts of Alaska and Japan


Alaska crab: large edible crab of northern Pacific waters especially along the coasts of Alaska and Japan


Alaskan king crab: large edible crab of northern Pacific waters especially along the coasts of Alaska and Japan


Alaska king crab: large edible crab of northern Pacific waters especially along the coasts of Alaska and Japan


Paralithodes camtschatica: large edible crab of northern Pacific waters especially along the coasts of Alaska and Japan


Majidae: spider crabs


family Majidae: spider crabs


spider crab: any of numerous crabs with very long legs and small triangular bodies


Maja: type genus of the Majidae; nearly cosmopolitan in distribution


genus Maja: type genus of the Majidae; nearly cosmopolitan in distribution


Maia: type genus of the Majidae; nearly cosmopolitan in distribution


genus Maia: type genus of the Majidae; nearly cosmopolitan in distribution


European spider crab: a large spider crab of Europe


king crab: a large spider crab of Europe


Maja squinado: a large spider crab of Europe


Macrocheira: giant crabs of Japan


genus Macrocheira: giant crabs of Japan


giant crab: very large deep-water Japanese crab


Macrocheira kaempferi: very large deep-water Japanese crab


Reptantia: lobsters; crabs


suborder Reptantia: lobsters; crabs


lobster: any of several edible marine crustaceans of the families Homaridae and Nephropsidae and Palinuridae


Homaridae: large-clawed lobsters


family Homaridae: large-clawed lobsters


true lobster: large edible marine crustaceans having large pincers on the first pair of legs


Homarus: type genus of the family Homaridae: common edible lobsters


genus Homarus: type genus of the family Homaridae: common edible lobsters


American lobster: lobster of Atlantic coast of America


Northern lobster: lobster of Atlantic coast of America


Maine lobster: lobster of Atlantic coast of America


Homarus americanus: lobster of Atlantic coast of America


European lobster: lobster of Atlantic coast of Europe


Homarus vulgaris: lobster of Atlantic coast of Europe


Cape lobster: small lobster of southern Africa


Homarus capensis: small lobster of southern Africa


Nephropsidae: in some classifications coextensive with the Homaridae


family Nephropsidae: in some classifications coextensive with the Homaridae


Nephrops: a genus of Nephropsidae


genus Nephrops: a genus of Nephropsidae


Norway lobster: edible European lobster resembling the American lobster but slenderer


Nephrops norvegicus: edible European lobster resembling the American lobster but slenderer


Palinuridae: spiny lobsters


family Palinuridae: spiny lobsters


Palinurus: type genus of the family Palinuridae


genus Palinurus: type genus of the family Palinuridae


spiny lobster: large edible marine crustacean having a spiny carapace but lacking the large pincers of true lobsters


langouste: large edible marine crustacean having a spiny carapace but lacking the large pincers of true lobsters


rock lobster: large edible marine crustacean having a spiny carapace but lacking the large pincers of true lobsters


crawfish: large edible marine crustacean having a spiny carapace but lacking the large pincers of true lobsters


crayfish: large edible marine crustacean having a spiny carapace but lacking the large pincers of true lobsters


sea crawfish: large edible marine crustacean having a spiny carapace but lacking the large pincers of true lobsters


Astacidae: crayfish


family Astacidae: crayfish


Astacura: crayfish


crayfish: small freshwater decapod crustacean that resembles a lobster


crawfish: small freshwater decapod crustacean that resembles a lobster


crawdad: small freshwater decapod crustacean that resembles a lobster


crawdaddy: small freshwater decapod crustacean that resembles a lobster


Astacus: type genus of the family Astacidae; Old World crayfish


genus Astacus: type genus of the family Astacidae; Old World crayfish


Old World crayfish: small crayfish of Europe and Asia and western North America


ecrevisse: small crayfish of Europe and Asia and western North America


Cambarus: a genus of Astacidae


genus Cambarus: a genus of Astacidae


American crayfish: common large crayfishes of eastern North America


Paguridae: hermit crabs


family Paguridae: hermit crabs


Pagurus: type genus of the family Paguridae


genus Pagurus: type genus of the family Paguridae


hermit crab: small soft-bodied marine crustaceans living in cast-off shells of gastropods


Natantia: shrimp; prawns; etc.


suborder Natantia: shrimp; prawns; etc.


Crangonidae: shrimps


family Crangonidae: shrimps


Crangon: type genus of the family Crangonidae


genus Crangon: type genus of the family Crangonidae


shrimp: small slender-bodied chiefly marine decapod crustaceans with a long tail and single pair of pincers; many species are edible


snapping shrimp: small shrimp that makes a snapping noise with one of their enlarged chelae


pistol shrimp: small shrimp that makes a snapping noise with one of their enlarged chelae


Palaemonidae: prawns


family Palaemonidae: prawns


Palaemon: type genus of the family Palaemonidae; widely distributed genus


genus Palaemon: type genus of the family Palaemonidae; widely distributed genus


prawn: shrimp-like decapod crustacean having two pairs of pincers; most are edible


long-clawed prawn: large (a foot or more) edible freshwater prawn common in Australian rivers


river prawn: large (a foot or more) edible freshwater prawn common in Australian rivers


Palaemon australis: large (a foot or more) edible freshwater prawn common in Australian rivers


Peneidae: tropical prawns


family Peneidae: tropical prawns


Peneus: type genus of the family Peneidae


genus Peneus: type genus of the family Peneidae


tropical prawn: edible tropical and warm-water prawn


Schizopoda: in former classifications a division of Malacostraca; superseded by the orders Mysidacea and Euphausiacea


Euphausiacea: small commonly luminescent crustaceans; important element of marine plankton: krill


order Euphausiacea: small commonly luminescent crustaceans; important element of marine plankton: krill


krill: shrimp-like planktonic crustaceans; major source of food for e.g. baleen whales


Euphausia pacifica: food for jellyfish


Mysidacea: opossum shrimp


order Mysidacea: opossum shrimp


Mysidae: small shrimp-like crustaceans


family Mysidae: small shrimp-like crustaceans


Mysis: type genus of the family Mysidae


genus Mysis: type genus of the family Mysidae


Praunus: a genus of Mysidae


genus Praunus: a genus of Mysidae


opossum shrimp: shrimp-like crustaceans whose females carry eggs and young in a pouch between the legs


Stomatopoda: mantis shrimps


order Stomatopoda: mantis shrimps


stomatopod: a kind of crustacean


stomatopod crustacean: a kind of crustacean


mantis shrimp: tropical marine burrowing crustaceans with large grasping appendages


mantis crab: tropical marine burrowing crustaceans with large grasping appendages


Squillidae: crustaceans that burrow in mud or under stones in shallow water along the seashore


family Squillidae: crustaceans that burrow in mud or under stones in shallow water along the seashore


genus Squilla: type genus of the family Squillidae


squilla: a kind of mantis shrimp


mantis prawn: a kind of mantis shrimp


Isopoda: woodlice


order Isopoda: woodlice


isopod: any of various small terrestrial or aquatic crustaceans with seven pairs of legs adapted for crawling


woodlouse: any of various small terrestrial isopods having a flat elliptical segmented body; found in damp habitats


slater: any of various small terrestrial isopods having a flat elliptical segmented body; found in damp habitats


Armadillidiidae: pill bugs


family Armadillidiidae: pill bugs


Armadillidium: type genus of the Armadillidiidae


genus Armadillidium: type genus of the Armadillidiidae


pill bug: small terrestrial isopod with a convex segmented body that can roll up into a ball


Oniscidae: a family of Isopoda


family Oniscidae: a family of Isopoda


Oniscus: type genus of the Oniscidae; woodlice that cannot roll into a ball


genus Oniscus: type genus of the Oniscidae; woodlice that cannot roll into a ball


Porcellionidae: sow bugs


family Porcellionidae: sow bugs


Porcellio: Old World genus of isopod crustaceans


genus Porcellio: Old World genus of isopod crustaceans


sow bug: terrestrial isopod having an oval segmented body (a shape like a sow)


sea louse: marine isopod crustacean


sea slater: marine isopod crustacean


Amphipoda: small flat-bodied semiterrestrial crustaceans: whale lice; sand-hoppers; skeleton shrimp


order Amphipoda: small flat-bodied semiterrestrial crustaceans: whale lice; sand-hoppers; skeleton shrimp


amphipod: a kind of malacostracan crustacean


Orchestiidae: beach fleas


family Orchestiidae: beach fleas


Orchestia: type genus of the family Orchestiidae


genus Orchestia: type genus of the family Orchestiidae


beach flea: small amphipod crustaceans that hop like fleas; common on ocean beaches


sand hopper: small amphipod crustaceans that hop like fleas; common on ocean beaches


sandhopper: small amphipod crustaceans that hop like fleas; common on ocean beaches


sand flea: small amphipod crustaceans that hop like fleas; common on ocean beaches


Caprella: skeleton shrimp


genus Caprella: skeleton shrimp


skeleton shrimp: small amphipod crustacean having a grotesque form suggestive of the praying mantis; found chiefly on seaweed


Cyamus: whale lice


genus Cyamus: whale lice


whale louse: amphipod crustacean parasitic on cetaceans


Entomostraca: in some older classifications includes the Branchiopoda and Copepoda and Ostracoda and Cirripedia; no longer in technical use


subclass Entomostraca: in some older classifications includes the Branchiopoda and Copepoda and Ostracoda and Cirripedia; no longer in technical use


Branchiopoda: primitive aquatic mainly freshwater crustaceans: fairy shrimps; brine shrimps; tadpole shrimps; can shrimps; water fleas


subclass Branchiopoda: primitive aquatic mainly freshwater crustaceans: fairy shrimps; brine shrimps; tadpole shrimps; can shrimps; water fleas


branchiopod crustacean: aquatic crustaceans typically having a carapace and many pairs of leaflike appendages used for swimming as well as respiration and feeding


branchiopod: aquatic crustaceans typically having a carapace and many pairs of leaflike appendages used for swimming as well as respiration and feeding


branchiopodan: aquatic crustaceans typically having a carapace and many pairs of leaflike appendages used for swimming as well as respiration and feeding


genus Daphnia: water fleas


daphnia: minute freshwater crustacean having a round body enclosed in a transparent shell; moves about like a flea by means of hairy branched antennae


water flea: minute freshwater crustacean having a round body enclosed in a transparent shell; moves about like a flea by means of hairy branched antennae


Anostraca: small aquatic crustaceans lacking a carapace: fairy shrimps; brine shrimps


order Anostraca: small aquatic crustaceans lacking a carapace: fairy shrimps; brine shrimps


Artemia: fairy shrimp; brine shrimp


genus Artemia: fairy shrimp; brine shrimp


Chirocephalus: fairy shrimp; brine shrimp


genus Chirocephalus: fairy shrimp; brine shrimp


fairy shrimp: small freshwater branchiopod having a transparent body with many appendages; swims on its back


brine shrimp: common to saline lakes


Artemia salina: common to saline lakes


Notostraca: small freshwater crustaceans with a shield-shaped carapace


order Notostraca: small freshwater crustaceans with a shield-shaped carapace


Triopidae: a family of Notostraca


family Triopidae: a family of Notostraca


Triops: type genus of the family Triopidae: small crustaceans with a small third median eye


genus Triops: type genus of the family Triopidae: small crustaceans with a small third median eye


tadpole shrimp: a kind of branchiopod crustacean


Copepoda: minute planktonic or parasitic crustaceans


subclass Copepoda: minute planktonic or parasitic crustaceans


copepod: minute marine or freshwater crustaceans usually having six pairs of limbs on the thorax; some abundant in plankton and others parasitic on fish


copepod crustacean: minute marine or freshwater crustaceans usually having six pairs of limbs on the thorax; some abundant in plankton and others parasitic on fish


brit: minute crustaceans forming food for right whales


britt: minute crustaceans forming food for right whales


genus Cyclops: copepod water fleas


cyclops: minute free-swimming freshwater copepod having a large median eye and pear-shaped body and long antennae used in swimming; important in some food chains and as intermediate hosts of parasitic worms that affect man e.g. Guinea worms


water flea: minute free-swimming freshwater copepod having a large median eye and pear-shaped body and long antennae used in swimming; important in some food chains and as intermediate hosts of parasitic worms that affect man e.g. Guinea worms


Branchiura: copepods with suctorial mouthparts; parasitic on fishes


order Branchiura: copepods with suctorial mouthparts; parasitic on fishes


fish louse: a kind of copepod


Ostracoda: seed shrimps


subclass Ostracoda: seed shrimps


seed shrimp: tiny marine and freshwater crustaceans with a shrimp-like body enclosed in a bivalve shell


mussel shrimp: tiny marine and freshwater crustaceans with a shrimp-like body enclosed in a bivalve shell


ostracod: tiny marine and freshwater crustaceans with a shrimp-like body enclosed in a bivalve shell


Cirripedia: barnacles


subclass Cirripedia: barnacles


barnacle: marine crustaceans with feathery food-catching appendages; free-swimming as larvae; as adults form a hard shell and live attached to submerged surfaces


cirriped: marine crustaceans with feathery food-catching appendages; free-swimming as larvae; as adults form a hard shell and live attached to submerged surfaces


cirripede: marine crustaceans with feathery food-catching appendages; free-swimming as larvae; as adults form a hard shell and live attached to submerged surfaces


Balanidae: stalkless barnacles


family Balanidae: stalkless barnacles


Balanus: type genus of the family Balanidae


genus Balanus: type genus of the family Balanidae


acorn barnacle: barnacle that attaches to rocks especially in intertidal zones


rock barnacle: barnacle that attaches to rocks especially in intertidal zones


Balanus balanoides: barnacle that attaches to rocks especially in intertidal zones


Lepadidae: goose barnacles


family Lepadidae: goose barnacles


Lepas: type genus of the family Lepadidae


genus Lepas: type genus of the family Lepadidae


goose barnacle: stalked barnacle that attaches to ship bottoms or floating timbers


gooseneck barnacle: stalked barnacle that attaches to ship bottoms or floating timbers


Lepas fascicularis: stalked barnacle that attaches to ship bottoms or floating timbers


Onychophora: enigmatic small elongated wormlike terrestrial invertebrates of damp dark habitats in warm regions; distinct from the phylum Annelida; resemble slugs with legs and are sometimes described as the missing link between arthropods and annelids


class Onychophora: enigmatic small elongated wormlike terrestrial invertebrates of damp dark habitats in warm regions; distinct from the phylum Annelida; resemble slugs with legs and are sometimes described as the missing link between arthropods and annelids


onychophoran: any of numerous velvety-skinned wormlike carnivorous animals common in tropical forests having characteristics of both arthropods and annelid worms


velvet worm: any of numerous velvety-skinned wormlike carnivorous animals common in tropical forests having characteristics of both arthropods and annelid worms


peripatus: any of numerous velvety-skinned wormlike carnivorous animals common in tropical forests having characteristics of both arthropods and annelid worms


Peripatidae: a family of Onychophora


family Peripatidae: a family of Onychophora


genus Peripatus: type genus of Peripatidae; onychophorans of chiefly New World tropical regions


Plicatoperipatus: a genus of Peripatidae


genus Plicatoperipatus: a genus of Peripatidae


Plicatoperipatus jamaicensis: a kind of onychophoran


Peripatopsidae: a family of Onychophora


family Peripatopsidae: a family of Onychophora


Peripatopsis: type genus of Peripatopsidae; onychophorans of chiefly Asiatic and African tropical regions


genus Peripatopsis: type genus of Peripatopsidae; onychophorans of chiefly Asiatic and African tropical regions


wading bird: any of many long-legged birds that wade in water in search of food


wader: any of many long-legged birds that wade in water in search of food


Ciconiiformes: order of chiefly tropical marsh-dwelling fish-eating wading birds with long legs and bills and (except for flamingos) unwebbed feet: herons; storks; spoonbills; flamingos; ibises


order Ciconiiformes: order of chiefly tropical marsh-dwelling fish-eating wading birds with long legs and bills and (except for flamingos) unwebbed feet: herons; storks; spoonbills; flamingos; ibises


Ciconiidae: storks


family Ciconiidae: storks


stork: large mostly Old World wading birds typically having white-and-black plumage


Ciconia: type genus of the Ciconiidae: European storks


genus Ciconia: type genus of the Ciconiidae: European storks


white stork: the common stork of Europe; white with black wing feathers and a red bill


Ciconia ciconia: the common stork of Europe; white with black wing feathers and a red bill


black stork: Old World stork that is glossy black above and white below


Ciconia nigra: Old World stork that is glossy black above and white below


Leptoptilus: adjutant birds and marabous


genus Leptoptilus: adjutant birds and marabous


adjutant bird: large Indian stork with a military gait


adjutant: large Indian stork with a military gait


adjutant stork: large Indian stork with a military gait


Leptoptilus dubius: large Indian stork with a military gait


marabou: large African black-and-white carrion-eating stork; its downy underwing feathers are used to trim garments


marabout: large African black-and-white carrion-eating stork; its downy underwing feathers are used to trim garments


marabou stork: large African black-and-white carrion-eating stork; its downy underwing feathers are used to trim garments


Leptoptilus crumeniferus: large African black-and-white carrion-eating stork; its downy underwing feathers are used to trim garments


Anastomus: openbills


genus Anastomus: openbills


openbill: stork with a grooved bill whose upper and lower parts touch only at the base and tip


genus Jabiru: jabirus


jabiru: large white stork of warm regions of the world especially America


Jabiru mycteria: large white stork of warm regions of the world especially America


Ephippiorhynchus: saddlebills


genus Ephippiorhynchus: saddlebills


saddlebill: large black-and-white stork of tropical Africa; its red bill has a black band around the middle


jabiru: large black-and-white stork of tropical Africa; its red bill has a black band around the middle


Ephippiorhynchus senegalensis: large black-and-white stork of tropical Africa; its red bill has a black band around the middle


Xenorhyncus: East Indian and Australian storks


genus Xenorhyncus: East Indian and Australian storks


policeman bird: large mostly white Australian stork


black-necked stork: large mostly white Australian stork


jabiru: large mostly white Australian stork


Xenorhyncus asiaticus: large mostly white Australian stork


Mycteria: a genus of storks of the family Ciconiidae now including only the American wood ibis


genus Mycteria: a genus of storks of the family Ciconiidae now including only the American wood ibis


wood ibis: an American stork that resembles the true ibises in having a downward-curved bill; inhabits wooded swamps of New World tropics


wood stork: an American stork that resembles the true ibises in having a downward-curved bill; inhabits wooded swamps of New World tropics


flinthead: an American stork that resembles the true ibises in having a downward-curved bill; inhabits wooded swamps of New World tropics


Mycteria americana: an American stork that resembles the true ibises in having a downward-curved bill; inhabits wooded swamps of New World tropics


Balaenicipitidae: shoebills


family Balaenicipitidae: shoebills


Balaeniceps: type genus of the Balaenicipitidae: shoebills


genus Balaeniceps: type genus of the Balaenicipitidae: shoebills


shoebill: large stork-like bird of the valley of the White Nile with a broad bill suggesting a wooden shoe


shoebird: large stork-like bird of the valley of the White Nile with a broad bill suggesting a wooden shoe


Balaeniceps rex: large stork-like bird of the valley of the White Nile with a broad bill suggesting a wooden shoe


Threskiornithidae: ibises


family Threskiornithidae: ibises


family Ibidiidae: ibises


ibis: wading birds of warm regions having long slender down-curved bills


genus Ibis: ibises


wood ibis: any of several Old World birds of the genus Ibis


wood stork: any of several Old World birds of the genus Ibis


Ibis ibis: any of several Old World birds of the genus Ibis


Threskiornis: type genus of the Threskiornithidae


genus Threskiornis: type genus of the Threskiornithidae


sacred ibis: African ibis venerated by ancient Egyptians


Threskiornis aethiopica: African ibis venerated by ancient Egyptians


Plataleidae: spoonbills


family Plataleidae: spoonbills


spoonbill: wading birds having a long flat bill with a tip like a spoon


Platalea: type genus of the Plataleidae


genus Platalea: type genus of the Plataleidae


common spoonbill: pure white crested spoonbill of southern Eurasia and northeastern Africa


Platalea leucorodia: pure white crested spoonbill of southern Eurasia and northeastern Africa


Ajaia: a genus of Platalea


genus Ajaia: a genus of Platalea


roseate spoonbill: tropical rose-colored New World spoonbill


Ajaia ajaja: tropical rose-colored New World spoonbill


Phoenicopteridae: flamingos


family Phoenicopteridae: flamingos