Type locality of syntypes of Odaxothrissa losera: 'Coquilhatville, Haut-Congo' (Ref. 1877). Type locality of holotype of Odaxothrissa vittata: 'Banzyville, Ubanghi River' (Ref. 2263). Widely distributed in lower and middle Congo River basin (Ref. 28136, 54749), including Lower Congo (Ref. 42510, 54749), Pool Malebo (Ref. 41585, 54749), main Middle Congo River (Ref. 1877, 1878, 1879, 4910, 46880, 54749), Lake Tumba (Ref. 41580, 41591, 44912, 54749), Ruki River (Ref. 54749), Ubangui River (Ref. 1878, 1884, 2263, 45441, 54749), Mongala River (Ref. 46880, 54749), Aruwimi River (Ref. 122734), Lindi/Tshopo River (Ref. 122734), Lomami River (Ref. 54749), Wagenia Falls (Ref. 41594, 42480, 54749), Lualaba River (Ref. 188) and Upper Lualaba River (Ref. 2970, 45434). Also Ref. 188, 83360.