Abstract
The taxonomy of the freshwater crabs living in the rivers draining from the mountains in the eastern Democratic Republic of the Congo and Rwanda into Lake Kivu is revised. Four species are recognized: Potamonautes perparvus (Rathbun, 1921), P. minor Bott, 1955, P. gonocristatus Bott, 1955, and P. semilunaris Bott, 1955. Updated diagnoses, illustrations, and distribution maps are provided for the species. The four species are compared to each other, and an identification key to all eight species found in Lake Kivu and its drainage basin is included.References
Bott, R. (1955) Die Süβwasserkrabben von Afrika und ihre Stammesgeschichte. Annales du Musée Royal du Congo belge, 1(3), 209–352.
Bott, R. (1970) Betrachtungen über die Entwicklungsgeschichte und Verbreitung der Süßwasser-Krabben nach der Sammlung des Naturhistorischen Museums in Genf/Schweiz. Revue suisse de Zoologie, 77 (2), 327–344.
Chace, F.A. (1942) Scientific results of a fourth expedition to forested areas in eastern Africa, III: Decapod Crustacea. Bulletin of the Museum of Comparative Zoology at Harvard College, 91(3), 185–233.
Cumberlidge, N. (1999) The freshwater crabs of West Africa, Family Potamonautidae. Faune et Flore tropicales 35, IRD, Paris, 382 pp.
Cumberlidge, N. (2008a) Potamonautes perparvus, IUCN Red List of Threatened Species, version 2010.4. [www.iucnredlist.org (accessed 27 March 2011)]
Cumberlidge, N. (2008b) Potamonautes minor. IUCN Red List of Threatened Species, version 2010.4. [www.iucnredlist.org (accessed 27 March 2011)]
Cumberlidge, N. (2008c) Potamonautes gonocristatus. IUCN Red List of Threatened Species, version 2010.4. [www.iucnredlist.org (accessed 27 March 2011)]
Cumberlidge, N. (2008d) Potamonatues semilunaris. IUCN Red List of Threatened Species, version 2010.4. [www.iucnredlist.org (accessed 27 March 2011)]
Cumberlidge, N. & Meyer, K.S. (2011) A revision of the freshwater crabs of Lake Kivu, East Africa. Journal of Natural History, 20, 1–24.
Cumberlidge, N., Ng, P.K.L., Yeo, D.C.J., Magalhaes, C., Campos, M.R., Alvarez, F., Naruse, T., Daniels, S.R., Esser, L.J., Attipoe, F.Y.K., Clotilde-Ba, F.-L., Darwall, W., McIvor, A., Baillie, J.E.M., Collen, B. & Ram, M. (2009) Freshwater crabs and the biodiversity crisis: Importance, threats, status, and conservation challenges. Biological Conservation, 142(8), 1665–1673.
Hilgendorf, F. (1892) Über eine neue ostafrikanische Süβwasserkrabbe (Telphusa emini). Sitzungsberichte der Gesellschaft Naturforschender Freunde zu Berlin, 1892(1), 11–13.
IUCN. (2003) Guidelines for Application of IUCN Red List Criteria at Regional Levels: version 3.0. IUCN Species Survival Commission. Gland, Switzerland and Cambridge, UK: IUCN.
MacLeay, W.S. (1838) Brachyurous Decapod Crustacea. Illustrations of the zoology of south Africa 5; being a portion of the objects of natural history chiefly collected during an expedition into the interior of south Africa, under the direction of Dr. Andrew Smith, in the years 1834, 1835, and 1836; fitted out by "The Cape of Good Hope Association for Exploring Central Africa." In A. Smith, Illustrations of the zoology of south Africa; consisting chiefly of figures and descriptions of the objects of natural history collected during an expedition into the interior of south Africa, in the years 1834, 1835, and 1836; fitted out by "The Cape of Good Hope Association for Exploring Central Africa." (Invertebrates), 75p, pl. 1–4.
Ng, P.K.L, Guinot, D. & Davie P.J.F. (2008) Systema Brachyurorum: Part 1. An annotated checklist of extant brachyuran crabs of the world. Raffles Bulletin of Zoology, 17, 1–286.
Rathbun, M.J. (1904) Les crabes de’eau douce (Potamonidae). Nouvelles Archives du Museum d'Histoire Naturelle, 4(6), 225–312.
Rathbun, M.J. (1921) Brachyuran Crabs of the Belgian Congo. Bulletin of the American Museum of Natural History, 43, 379–468.
Rathbun, M.J. (1935) Scientific Results of an Expedition to Rain Forest Regions in Eastern Africa. 2. Crustacea. Bulletin of the Museum of Comparative Zoology at Harvard College, 79, 23–28.
Reed, S.K. & Cumberlidge, N. (2006) Taxonomy and biogeography of the freshwater crabs of Tanzania, East Africa (Brachyura: Potamoidea: Potamonautidae, Platythelphusidae, Deckeniidae). Zootaxa, 1262, 1–139.