Abstract

A new species of caprellid, Caprella suprapiscis sp. nov., is described based on several specimens collected from Bahía Chamela, Jalisco, Mexico. All specimens were found in association with the scorpionfish Scorpaena mystes. Caprellids are set on the dorsal surface of fishes. The species is distinguished by head with a short dorsal projection, eyes distinctive, body slender and smooth, peduncular articles of antenna 1 not setose, antenna 2 with swimming setae, gnathopod 2 with three ventral projections in males. The species is close to C. californica, C. mercedesae, and C. scaura for a sharp spine on the forehead but can be distinguished by gnathopod 2 finely setose, and basis of gnathopod 2 shorter.

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