geertsii, Caecobarbus Boulenger [G. A.] 1921:252, Fig. [Revue de Zoologie Africaine v. 9 (pt 3); ref. 588] Grotto at Thysville, tributary of Kwilu River, itself a tributary to lower Congo River, Democratic Republic of Congo, 5°15'S, 14°52'E, elevation 700 meters. Syntypes: (4) MRAC 14610-612 (3); 1 young specimen. •Valid as Caecobarbus geertsii Boulenger 1921 -- (Lévêque & Daget 1984:298 [ref. 6186], Poll & Gosse 1995:159 [ref. 24781], Romero & Paulson 2001:16 [ref. 26040], Proudlove & Romero 2001:238 [ref. 26396], Proudlove 2006:57 [ref. 28992], Hayes & Armbruster 2017:351 [ref. 35417], Mullens et al. 2020:292 [ref. 37580] possibly in the genus Enteromius). Current status: Valid as Caecobarbus geertsii Boulenger 1921. Cyprinidae: Smiliogastrinae. Distribution: Caves belonging to the lower Congo River system, Mbanza-Ngungu region, Democratic Republic of Congo. Habitat: freshwater.