20 Median red band in anal fin   . . . . . . . . . . . . . . . . .  F. gardneri nigerianus
No median red band in anal fin . . . . . . . . . . . . . . . . . .  21

21 Submarginal bands in caudal fin converging, anal fin generally with several
large spots (fig. 27.25A) . . . . . . . . . . . . . . . . . . . . . F. gardneri mamfensis
Submarginal bands in caudal fin not converging, anal fin without spots or only a
few small spots present (fig. 27.25B) . . . . . . . . . . . . . . . F. gardneri lacustri