Crinoid shrimp

Scientific name : Periclimenes cf. ceratophthalmus

This shrimp belongs to a group of many species, all commensal of crinoids, difficult to identify without a microscopic examination. We give some tips to give a name to some of the more important species, keeping into account that an identification based only on a photography cannot be sure.
P. ceratophthalmus has often a colour pattern with many horizontal lines, matching the host colour. Body elongated, thin claws, rostrum slightly curved and with a series of teeth on the upper rim. 1.5 cm.
Very easy to confound with anyone of the Periclimenes species living as commensals on crinoids. Compared with Periclimenes cf. amboinensis and Periclimenes cf. cornutus (both described in this site) can be identified by the cololur pattern with many horizontal lines.

Associated organisms
It lives as commensal on crinoids of the genera Himerometra, Dichrometra and Lamprometra.