microstoma, Trematocranus Trewavas [E.] 1935:114, Fig. 13b [Annals and Magazine of Natural History (Series 10) v. 16 (no. 91) (art. 6); ref. 4451] Northern and southern ends of Lake Malawi [Lake Nyasa], southeastern Africa. Syntypes: (20) BMNH 1935.6.14.2226-2231 (6), 1935.6.14.2232-2236 (5), 1935.6.14.2237 (1); MNHN 1937-0236 [ex BMNH] (1); NMW 25617 (1). Type catalog: Blanc 1962:226 [ref. 20868]. •Valid as Trematocranus microstoma Trewavas 1935 -- (Eccles & Trewavas 1989:188 [ref. 13547], Maréchal 1991:516 [ref. 20944], Snoeks & Hanssens 2004:308 [ref. 28117], Konings 2016:362 [ref. 34521], Dierickx et al. 2018:163 [ref. 35849]). Current status: Valid as Trematocranus microstoma Trewavas 1935. Cichlidae: Pseudocrenilabrinae. Distribution: Eastern Africa: Lake Malawi. Habitat: freshwater.