Freshwater Animal Diversity Assessment

Hydrobiologia

, Volume 595, Issue 1, pp 275-286

First online:

Global diversity of crabs (Crustacea: Decapoda: Brachyura) in freshwater

  • Darren C. J. YeoAffiliated withDepartment of Biological Sciences, National University of Singapore Email author 
  • , Peter K. L. NgAffiliated withDepartment of Biological Sciences, National University of Singapore
  • , Neil CumberlidgeAffiliated withDepartment of Biology, Northern Michigan University
  • , Célio MagalhãesAffiliated withInstituto Nacional de Pesquisas da Amazônia
  • , Savel R. DanielsAffiliated withDepartment of Botany and Zoology, University of Stellenbosch
  • , Martha R. CamposAffiliated withInstituto de Ciencias Naturales, Universidad Nacional de Colombia

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Abstract

An assessment of the global freshwater crab diversity is presented. A total of 1,476 species in 14 families are currently known from all zoogeographical regions (except Antarctica), including 1,306 species in eight exclusively freshwater families (Pseudothelphusidae, Trichodactylidae, Potamonautidae, Deckeniidae, Platythelphusidae, Potamidae, Gecarcinucidae and Parathelphusidae). Estimates of true freshwater crab diversity including likely numbers of undescribed taxa suggest that the field remains largely in a “discovery” phase. Main ideas on the origins, diversification, and phylogeny of true freshwater crabs are briefly discussed. The economic importance of freshwater crabs is also highlighted.

Keywords

Global assessment Freshwater crab Diversity Crustacea Decapoda Brachyura Species estimates