Papyrocranus

Like other members of the family Notopteridae this species differs from Gymnotiform knifefish in that its anal and caudal fins are fused together into one long, undulating fin running along the underside of the fish. There is only one other species in the genus. P. congoensis is a smaller, plain brown coloured fish found only in the Democratic Republic of Congo and is very rare in the hobby. P. afer is also infrequently imported and is one of the rarer knifefish species in the hobby. It can dev...