1. Département de Gestion des Écosystèmes Aquatiques, Institut des Sciences Halieutiques, Université de Douala à Yabassi, P.O. Box. 7236 Douala-Bassa, Cameroun
2. Museum für Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Invalidenstrasse 43, 10115 Berlin, Germany
3. Unit of Biodiversity Discovery and Conservation, Cameroon Association for Research on Crustaceans and others Aquatic Resources, P.O. Box. 43 OBALA, Cameroon
4. Department of Life Sciences, The Natural History Museum, Cromwell Road, London SW7 5BD, U.K.
5. Department of Biology, Northern Michigan University, Marquette, MI 49855-5376, U.S.A.