Taxonomy of the freshwater crab genus Neopseudothelphusa Pretzmann, 1965 (Decapoda: Brachyura: Pseudothelphusidae), with the description of a new genus

Abstract The taxonomy of the genus Neopseudothelphusa Pretzmann, 1965 is revised based on the morphology of the male first gonopod. A new genus, Culterthelphusa, is here proposed to receive Neopseudothelphusa simoni (Rathbun, 1905), while the genus Neopseudothelphusa is restricted to its type species, Neopseudothelphusa fossor (Rathbun, 1898). Illustrations of the first gonopod of both genera are provided.