Knife shrimp

Marine crustacean. Rostrum very high and prominent, arched or straight, extending far beyond the eye, with 10 to 14 teeth on dorsal margin (epigastric tooth and other tooth separated from other rostral teeth by a long interval) and 1 or 2 on ventral; suprahepatic spine also present, but very small; telson armed with a pair of fixed distolateral spines; antennal flagella longer than the body; first pereopods armed with 1 to 3 spines on merus, none on basis. Colour: uniformly red. Maximum total length 175 mm.