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Issue: Vol. 1524 No. 1: 9 Jul. 2007
Type: Articles
Published: 2007-07-09
DOI: 10.11646/zootaxa.1524.1.6
Page range: 61–68
Abstract views: 50
PDF downloaded: 15

Hydrothelphusa vencesi, a new species of freshwater crab  (Brachyura: Potamoidea: Potamonautidae) from southeastern Madagascar

Department of Biology, Northern Michigan University, Marquette, Michigan 49855, USA
Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, P.O. Box 94766, 1090 GT, Amsterdam, Netherlands
Sorenson Forensics, Salt Lake City, UT 84115, USA
Crustacea Brachyura Potamoidea Potamonautidae Hydrothelphusa freshwater crab taxonomy new species Madagascar

Abstract

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.

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