what class of arthropods do crabs belong to
Arthropod Arthropods belong to phylum Euarthropoda.[3][81] The phylum is sometimes called Arthropoda, but strictly this term denotes a (putative - see Tactopoda) clade that also encompasses Phylum Onychophora.[1]
Armadillidium vulgare Armadillidium vulgare, the (common) pill-bug, potato bug, (common) pill woodlouse, roly-poly, doodle bug, or carpenter, is a widespread European species of woodlouse. It is the most extensively investigated terrestrial isopod species.[2]