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Hydrothelphusa vencesi, a new species of freshwater crab

By Neil Cumberlidge, Saskia A. E. Marijnissen and Jonelle Thompson


A new species of freshwater crab of the genus Hydrothelphusa A Milne-Edwards, 1872, is described based on specimens collected from a forested region of southeastern Madagascar. Hydrothelphusa vencesi n. sp. is clearly distinguished from its congeners by its distinctive first gonopod (G1) with a terminal article that is in the form of a long straight-sided cone, and by a dorsal membrane at the segment junction of G1 that is broad and diamond-shaped. A key is provided to separate the five species of Hydrothelphusa

Topics: Key words, Crustacea, Brachyura, Potamoidea, Potamonautidae, Hydrothelphusa, freshwater crab, taxonomy, new species, Madagascar
Year: 2011
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