nigrifrons, Trematocara Boulenger [G. A.] 1906:570, Pl. 41 (fig. 1) [Transactions of the Zoological Society of London v. 17 (pt 6, no. 1); ref. 573] Sumbu, Zambia, Lake Tanganyika. Syntypes: BMNH 1906.9.8.208-209 (2). •Valid as Trematocara nigrifrons Boulenger 1906 -- (Maréchal & Poll 1991:512 [ref. 20946], De Vos et al. 1996:14 [ref. 23211], Takahashi 2002:258 [ref. 26334], Konings 2015:374 [ref. 34660], Konings 2019:397 [ref. 36983]). Current status: Valid as Trematocara nigrifrons Boulenger 1906. Cichlidae: Pseudocrenilabrinae. Distribution: Eastern Africa: Lake Tanganyika. Habitat: freshwater.