Title: A revision of the West African Hepsetus (Characiformes: Hepsetidae) with a description of Hepsetus akawo sp nov and a redescription of Hepsetus odoe (Bloch, 1794)
Authors: Decru, Eva ×
Vreven, Emmanuel
Snoeks, Jos #
Issue Date: 2012
Publisher: Taylor & Francis
Series Title: Journal of Natural History vol:46 issue:1-2 pages:1-23
Abstract: Within the genus Hepsetus, a new species from the eastern part of West Africa is described. Hepsetus akawo sp. nov. is mainly distinguished from Hepsetus odoe by a smaller number of lateral line scales [43-51 vs 50-60 (exceptionally 49)] and a shallower head depth [38.0-45.6 (mean 42.0) % head length vs 41.4-49.0 (44.6) % head length] (positively allometric). Hepsetus akawo sp. nov. differs mainly from the recently rehabilitated Hepsetus cuvieri by: a higher number of gill rakers (17-23 vs 8-13); and a lower number of scales between the dorsal fin and the lateral line (7 1/2-9 1/2 vs 10 1/2-11 1/2). Within West Africa, the distribution area of the new species is restricted to the Sassandra River (Ivory Coast) in the west up to the Cross River (Cameroon) in the east. The species is entirely allopatric with H. odoe, which has a far more restricted distribution than previously thought and occurs from the Senegal River (Senegal) in the west to the Cavally River (Ivory Coast) in the east.
ISSN: 0022-2933
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Ecology, Evolution and Biodiversity Conservation Section
Laboratory for Animal Biodiversity and Systematics (-)
× corresponding author
# (joint) last author

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