Etzel, V. Staatl. Veterinaeruntersuchungsamt Fische und Fischwaren, Hamburg-Amerika-St. 6, D-27472 Cuxhaven, FRG. Z. FISCHKD., vol. 3, no. 1., pp. 91-106, 1995.
The relationships between ten populations of the killifish Epiplatys sexfasciatus were examined by crossbreeding experiments. The populations between Togo and Gabon appear to be closely related, but cannot be crossed freely. Differences in morphology and color between the populations and the results of the crossbreeding experiments allow the following conclusion: The three subspecies of Epiplatys sexfasciatus are elevated to species rank with the species E. togolensis, E. sexfasciatus and E. infrafasciatus. The latter species is subdivided into E. infrafasciatus infrafasciatus, E. infrafasciatus rathkei and E. infrafasciatus baroi. These populations have different colors and occur in distinct regions. The results and the new classification seem to agree with the thesis of distribution of major and minor centers of endemism for African forest mammals. Thus, Cameroon may be a center of endemism for fishes of the Epiplatys sexfasciatus group.
— G.C.K.A. Newsletter, January 1997