Caridina H. Milne Edwards, 1837

Mazancourt, Valentin de, Marquet, Gérard & Keith, Philippe, 2024, An Integrative Taxonomic Revision of the Freshwater Atyid Shrimps (Crustacea: Decapoda: Caridea) of Micronesia, Diversity 16 (200), pp. 1-31 : 11

Genus Caridina H. Milne Edwards, 1837

Diagnosis: From small- to medium-sized shrimps (cl: 10–40 mm); ocular peduncle with variable corneal dilatation; rostrum strongly compressed laterally, with or without serration on both margins; carapace with antennal spine on the infraorbital angle, protruding or fused with it; pterygostomian margin unarmed, supraorbital spines absent; third maxilliped with a series of unequal spines on the dactylus; pereiopods without exopods; first pereiopods shorter than second, both with palm, fingers tipped with brushes of setae, carpus of P1 sometimes excavated, P2 never, both clearly longer than broad; branchial complement consisting of five pleurobranchs, three arthrobranchs, and one podobranch, with variable number of epipods and five mastigobranchs; first pleopod of male with a flat endopod of diverse shapes, with or without appendix; second pleopod of male with appendix masculina sub-cylindrical, spinose over more than distal half.