Family Nothobranchiidae Garman, 1895 [Garman, S. 1895. The cyprinodonts. Memoirs of the Museum of Comparative Zoology at Harvard College 19 (1): 1-179, 12 plates.]
"Division of species of the Aphyosemion Nothobranchius group on the basis of dorsal fin position and ray number is problematic.
The position of the dorsal fin is variable even among individuals of the same species." - (Parenti 1981, p393)