Northern pink shrimp

Marine crustacean consisting of a cephalothorax, abdomen and tail. Carapace smooth. Rostrum armed with usually 8 or 9 teeth on dorsal margin, and 2 teeth on ventral, its tip rather short (1/4 or less the length of rostrum); adrostral sulcus and carina long, extending almost to hind margin of carapace; postrostral carina well developed as far back as adrostral sulcus, with a deep median sulcus throughout its length. Dorsolateral carina on last abdominal segment well defined and narrow, ratio of height of dorsal keel to width of sulcus usually 4.5 or more, and with sharp lips sometimes nearly closed. Colour: often pale to dark pink, or reddish, but sometimes lemon yellow or light grey. Usually with a dark (purple, brown, greyish red, or blue) lateral spot at junction of third and fourth abdominal segments. Maximum total length 280 mm.