Abstract
Ancinus jarocho n. sp. described from mesolittoral zone of sandy beaches in Veracruz State, Mexico, is the eighth species of the genus and the second record for the Gulf of Mexico coast. The new species is characterized by an antennular flagellum of 11–16 articles, single aesthetasc in 9 distal flagellar articles, uropodal endopod styliform, lightly arched and shortest than pleotelson, male pleopod 5 exopod with the distomesial margin serrated, with minutes spines. Ancinus jarocho n. sp. is morphologically similar to A. granulatus, which has a truncate pleotelson apex, densely granulated body surface and eyes on elevated swellings.
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