Erstbeschreibung: Trewavas, Ethelwynn. 1935. „A Synopsis of the Cichlid Fishes of Lake Nyasa“. Annals and Magazine of Natural History. Series 10; pp. 65-118
Typusart: Diplotaxodon argenteus TREWAVAS, 1935
Beschriebene Arten:
Diplotaxodon aeneus TURNER & STAUFFER, 1998
Diplotaxodon apogon TURNER & STAUFFER, 1998
Diplotaxodon argenteus TREWAVAS, 1935
Diplotaxodon ecclesi BURGESS & AXELROD, 1973
Diplotaxodon greenwoodi STAUFFER & MCKAYE, 1986
Diplotaxodon limnothrissa TURNER, 1994
Diplotaxodon macrops TURNER & STAUFFER, 1998