Chiambeng, G.Y. & H.J. Dumont. (2002). Calanoid copepods from the lowland forest zone of Cameroon (West Africa), with the description of a new species of Tropodiaptomus. Hydrobiologia 489(1-3):99-106.

71691

Chiambeng, G.Y. & H.J. Dumont

2002

489(1-3):99-106.

Publication

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The calanoid copepods of the inland waters of West Africa are comparatively well known in the zone between the Republic of Senegal and the lower Niger valley. An overview of the regional Tropodiaptomus, which includes ten species out of 35–40 known to occur in Africa (Dussart & Defaye, 2002) is given by Maas et al. (1992). Two species of Thermodiaptomus also occur in the same area (Kiefer, 1926; Dumont et al., 1981). South of the Niger valley, in Cameroon, Gabon and Congo, what little work has been done (Kiefer, 1926, 1928) seems to reflect a local rarity of calanoids. Only Tropodiaptomus loveni (De Guerne & Richard, 1890) is known from the south of Gabon, in an area (Mayoumbe) that is part of the Congo basin. In addition, Tropodiaptomus processifer and Thermodiaptomus galebi may, in fact, have been collected in the savannah part of Cameroon (Kiefer, 1926 – see further). Recently, Chiambeng & Dumont (1999) and Dumont & Chiambeng (2002) collected and examined about 500 plankton samples from the rainforest section of Cameroon, representing a wide range of waters, from the smallest to the largest, both stagnant and running. Three calanoid species were found, in extremely low numbers. Yet, surprisingly, these included a new genus, Camerundiaptomus, represented by two new species. Here, we continue the studies undertaken earlier, adding about 200 new samples to our collection, and re-examining a number of former samples.

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