Abstract

ORTIZ, Manuel  and  CHAZARO-OLVERA, Sergio. A new species of the genus Eudevenopus (Crustacea: Amphipoda: Platyischnopidae) from the Gulf of Mexico. Rev. Mex. Biodiv. [online]. 2022, vol.93, e933852.  Epub Jan 20, 2023. ISSN 2007-8706.  https://doi.org/10.22201/ib.20078706e.2022.93.3852.

The genus Eudevenopus includes 4 valid species, inhabitants of relatively shallow waters in both sides of America. A fifth species, collected with a light trap in Sisal, Yucatán Peninsula is described and illustrated in this paper. Eudevenopus winfieldi n. sp. can be distinguished from other species in the genus by the pereopod 7 dactylus, which is as long as propodus, article 1 of flagellum antenna 1 of the male with 2-4 aesthetascs, a comb of 6 distal pectinate setae on the posterodistal margin of the carpus of gnathopod 2, and the uropod 3 peduncle, which has a simple robust intermediate seta on the external margin. An identification key and a comparative table are also provided to contrast the new species from E. honduranus, which is the closest recognised species.

Keywords : New species; Amphipoda; Platyischnopidae; Yucatán Peninsula; Mexico.