A new cave species of Cryphiops (Crustacea: Decapoda: Palaemonidae) from Southern Mexico

The second cave species of the genus Cryphiops from Chiapas, Mexico is described. Cryphiops sbordonii sp. nov. is similar to Cryphiops luscus in exhibiting reduced eyes, and an enlargement of ambulatory appendages. It differs from this species in ornamentation of the rostrum, proportions of the articles of the first and the second pereiopods, and proportion between the length of the appendix masculina and the length of the appendix interna, as well as the disposition and the number of the setae on the appendix masculina. Cryphiops sbordonii new species occurs in the Cueva Chamburro, a cave located in the Margaritas Region of Chiapas, southern Mexico.