Aleister Crowley was an English citizen.
Dyspanopeus sayi is a species of mud crab that is native to the Atlantic coast of North America .. Dyspanopeus. Dyspanopeus. species. species. crab. crab. Atlantic. Atlantic Ocean. It has also become established outside its native range , living in Swansea Docks since 1960 , the Mediterranean Sea since the 1970s , the North Sea since 2007 and the Black Sea since 2010 .. Swansea Docks. Swansea Docks. Mediterranean Sea. Mediterranean Sea. North Sea. North Sea. Black Sea. Black Sea. It can reach a carapace width of 20 mm , and has black tips to its unequal claws .. carapace. carapace. It feeds on bivalves and barnacles , and is in turn eaten by predators including the Atlantic blue crab , Callinectes sapidus .. crab. crab. Atlantic. Atlantic Ocean. bivalves. Bivalvia. predators. predation. Callinectes sapidus. Callinectes sapidus. Eggs are produced from spring to autumn , the offspring reach sexual maturity the following summer , and individuals can live for up to two years .. The closest relative of D. sayi is D. texanus , which lives in the Gulf of Mexico ; the two species differ in subtle features of the genitalia and the last pair of walking legs .. species. species. Gulf of Mexico. Gulf of Mexico. walking legs. pereiopod