karoualensis, Barbus Blache [J.] & Miton [F.] 1960:147 [Bulletin du Muséum National d'Histoire Naturelle (Série 2) v. 32 (no. 2); ref. 20674] Karoul, Mayo Kébbi, Mayo-Kébbi basin. Syntypes: MNHN 1959-0233 (25, as "types"); as "paratypes": MNHN 1959-0234 (23), CEPFL 712-715 (4). Type catalog: Blanc 1961:265 [ref. 20870]. •Valid as Barbus karoualensis Blache & Miton 1960 -- (Lévêque & Daget 1984:257 [ref. 6186]). •Synonym of Barbus stigmatopygus Boulenger 1903 -- (Lévêque 1989:170, 173 [ref. 12829], Lévêque in Lévêque et al. 1990:328 [ref. 21589], Lévèque et al. 1991:141 [ref. 31367]). •Synonym of Enteromius stigmatopygus (Boulenger 1913) -- (Hayes & Armbruster 2017:355 [ref. 35417]). Current status: Synonym of Enteromius stigmatopygus (Boulenger 1903). Cyprinidae: Smiliogastrinae. Habitat: freshwater.