N.cooperi Mansa ZAM 97-3 (C) Jhon Rorenstock
Nothobranchius cooperi (Teleostei: Cyprinodontiformes) a new species of annual killifish from the Luapula River drainage, northern Zambia. African Journal of Aquatic Science, 42 (3): 201–218. Abstract Nothobranchius cooperi, Nagy, Watters and Bellstedt, new species, is described from seasonal streams and ephemeral pools associated with the upper Mansa River system in the middle Luapula drainage and systems draining into the low-lying area marginal to the southwestern part of Lake Bangweulu, in the Luapula province of northern Zambia. It belongs to the N. brieni species group. Males of Nothobranchius cooperi are distinguished from congeners by the following unique combination of characters: body scales with broad orange posterior margin, forming a highly irregular cross-barred pattern; anal fin fairly uniform orange-red with irregular to regular, light blue-green zone close to the base; caudal peduncle length 1.2–1.3 times its depth; prepelvic length 48.8–51.9% SL; and head depth 75–77% of head length. Genetic divergence of the mitochondrial COI and ND2 genes and nuclear S7 gene support the distinction of the new species from its closest known relative, N. rosenstocki and confirms its position in the N. brieni species group.
Genus: Nothobranchius Subgenus: Zonothobranchius. Group: brieni
Geographical Distribution Maps
Type locality:20 km east of Mansa town, on road to Samfya, middle Luapula drainage, upper Mansa river system, Luapula province, (central) Zambia.
Status specie: Not unanimously confirmed. This species was first named as N. sp Mansa
Related: Rosenstock, J. 1991. Zambia 1989. Journal of the American Killifish Association, 24 (4–6): 213–220. [collecting as Nothobranchius sp. Mansa] Valdesalici, S. & R. H. Wildekamp. 2005. A new species of the genus Nothobranchius (Cyprinodontiformes: Nothobranchiidae) from Luapula River basin, Zambia. Aqua, International Journal of Ichthyology, 9 (3): 89–96. [taxonomy as Nothobranchius rosenstocki]
Nothobranchius cooperi
Nagy, Watters & Bellstedt, 2017