perspicax, Melanochromis Trewavas [E.] 1935:79 [Annals and Magazine of Natural History (Series 10) v. 16 (no. 91) (art. 6); ref. 4451] Deep Bay, Lake Malawi [Lake Nyasa], southeastern Africa. Holotype (unique): BMNH 1935.6.14.320. •Valid as Melanochromis perspicax Trewavas 1935 -- (Maréchal 1991:263 [ref. 20944]). • Mention -- (Konings-Dudin et al. 2009:56 [ref. 30309]). •Valid as Pseudotropheus perspicax (Trewavas 1935) -- (Konings & Stauffer 2012:18 [ref. 31871], Konings 2016:103 [ref. 34521]). Current status: Valid as Pseudotropheus perspicax (Trewavas 1935). Cichlidae: Pseudocrenilabrinae. Distribution: Eastern Africa: Lake Malawi. Habitat: freshwater.