CALLIASMATA NOHOCHI, NEW SPECIES (DECAPODA, CARIDEA, HIPPOLYTIDAE), FROM ANCHIALINE CAVE SYSTEMS IN CONTINENTAL QUINTANA-ROO, MEXICO

A third species of Calliasmata, C. nohochi, is described from anchiali ne cave systems in Quintana Roo, Mexico. The new species closely resem bles C. rimolii from the Dominican Republic, of which only female spec imens are known. Calliasmata nohochi is characterized by a cephalon co vered with minute scales and pits, longer pleura 5, and different spin ulation on pereiopods 3-5 from that observed in the other two species of Calliasmata. Differences from C. pholidota are more conspicuous, an d include the absence of ventral spines on pleura 3-5, the form and sp inulation of the appendix masculina of the second pleopod of the male, and dimorphism in the segmentation of the upper flagellum of the ante nnular peduncle, and in the second pereiopods. Sexual dimorphism is ob served among specimens of C. nohochi in the proportions, form, and spi nulation of the antennular peduncle and flagellum, pereiopods 2-4, and pleopod 2.