Fischer, W.; Bianchi, G.; Scott, W.B. (1981). FAO species identification sheets for fishery purposes: Eastern Central Atlantic fishing area 34, 47 (in part): 6. Shrimps and prawns, true crabs, Stomatopoda, bivalves, Gastropoda, Cephalopoda, sea turtles.
FAO species identification sheets for fishery purposes, 6. Department of Fisheries and Oceans, Canada: Ottawa, Canada. pag.var pp.