Smooth, shiny carapace without hairs. Rostrum is almost horizontal but curves down very slightly, and has 8-10 dorsal teeth and usually a single ventral tooth. Adostral and median grooves reach the posterior margin of the carapace. Adostral groove is narrower than the postrostral ridge. The anterior plate of the thelycm is rounded at the apex in females. Telson has moveable lateral spines.
Color: brown bands (usually 10 or more) are especially conspicuous on the abdomen, but also apparent on the dorsal part of the carapace, legs and uropods. Legs are red and the telson and uropods are tinged with red, blue and yellow (Bailey-Brock & Moss, 1992).
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