1 Département de Gestion des Écosystèmes Aquatiques; Institut des Sciences Halieutiques; Université de Douala à Yabassi; Douala- Bassa P.O. Box 7236; Cameroon; Museum fur Naturkunde; Leibniz Institute for Evolution and Biodiversity Science; Unit of Biodiversity Discovery and Conservation; Cameroon Association for Research on Crustaceans and Others Aquatic Resources; Obala P.O. Box 43; Cameroon. mpierrearmand@yahoo.fr.
2 Department of Life Sciences; The Natural History Museum; London SW7 5BD; UK. p.clark@nhm.ac.uk.
3 Museum fur Naturkunde; Leibniz Institute for Evolution and Biodiversity Science; Invalidenstrasse 43; 10115 Berlin; Germany. Thomas.vonRintelen@mfn.berlin.
4 Department of Biology; Northern Michigan University; Marquette; MI 49855-5376; USA. ncumberl@nmu.edu.