Archiaphyosemion

Sonnenberg, Rainer & Busch, Eckhard, 2009, Description of a new genus and two new species of killifish (Cyprinodontiformes: Nothobranchiidae) from West Africa, with a discussion of the taxonomic status of Aphyosemion maeseni Poll, 1941, Zootaxa 2294, pp. 1-22 : 18

Key to Archiaphyosemion and Nimbapanchax species based on external morphological and live color pattern characters.

1. Males with alternating dark and light stripes on caudal fin; 11–12 transverse scales; 15–17 circumpeduncular scales; 30–34 lateral line scales; frontal squamation E-type ....................................................... Archiaphyosemion guineense

- Males with dark blotches or dots on caudal fin; 8–10 transverse scales; 12–14 circumpeduncular scales; 27–30 lateral line scales; frontal squamation usually G-type ...................................................................................................... 2

2. Males sometimes with yellowish marginal or submarginal zone on anal and lower caudal fin, no white margin; females with brown, broad, wide-spaced bars on side; 8–9 transverse scales; 12 circumpeduncular scales ................. .................................................................................................................................................... Nimbapanchax petersi

- Males with white or light blue margin around caudal fin, sometimes not closed; females without or with smaller spaced brown bars on side; 9–10 transverse scales; 13–14 circumpeduncular scales .................................................. 3

3. Males brown on side, center of many scales with metalic blue-green, little red pigmentation on side; dark brown or reddish blotch laterally above insertion of pectoral fin in females ............................................................................... 4

- Males metalic blue-green on side with only small brownish scale margins; no or only small brown or reddish blotch laterally above insertion of pectoral fin in females....................................................................................................... 5

4. Males with white or light blue margin and dark brown or red submarginal stripe on anal fin; unpaired fins in males with small brown dots on blue-greenish center; juvenile males and females laterally with bars................................... ....................................................................................................................................... Nimbapanchax leucopterygius

- Males with black or dark brown margin and often white submarginal stripe on anal fin; anal and caudal fin with brown or reddish-brown irregular blotches on blue-green center; no bars on side of males and only sometimes in frightened females ....................................................................................................... Nimbapanchax melanopterygius

5 Males with lateral irregular distributed red dots on scales sometimes forming regular lines ..... Nimbapanchax viridis

- Males with lateral broad dark brown or red-brown bars or blotches at or slightly above body midline ............ Nimbapanchax jeanpoli