mesmaekersi, Hemistichodus Poll [M.] 1959:85, Pl. 16 (fig. 2A) [Annales du Musée du Congo Belge v. 71 (art. 3); ref. 3522] Noire River, Stanley Pool channel, Congo River,Democratic Republic of Congo. Holotype: MRAC 118973. Paratypes: MRAC 73963 (1), 98670-71 (1, 1), 100760 (1), 118974-78 (5), 11979-80 (2). Type catalog: Derijst 1991:47 [ref. 21528]. •Valid as Hemistichodus mesmaekersi Poll 1959 -- (Daget & Gosse 1984:196 [ref. 6185], Poll & Gosse 1995:149 [ref. 24781]). •Valid as Monostichodus mesmaekersi (Poll 1959) -- (Musschoot & Snoeks 2016:1081 [ref. 34892], Stiassny et al. 2021:1687 [ref. 39000], Musschoot 2024:343 [ref. 40817]). Current status: Valid as Monostichodus mesmaekersi (Poll 1959). Distichodontidae. Distribution: Central Africa: Congo River basin (Democratic Republic of Congo). Habitat: freshwater.