eurystomus, Synodontis Matthes [M.] 1959:77 [Folia Scientifica Africae Centralis v. 5 (no. 4); ref. 6068] Lake Tanganyika. Holotype: MRAC 130440. Paratypes: MRAC 130441 (1), 442-443 (2), 444-446 (3), 447-451 (5), 452-453 (2), 462-463 (2), 464 (1). Additional material: MRAC 454-461 (8), 131009 (1), 130814 (1), 130825 (1). Type catalog: Ferraris 2007:319 [ref. 29155]. Objectively invalid; preoccupied by Synodontis eurystomus Pfeffer 1889, replaced by Synodontis polli Gosse 1982. •Valid as Synodontis eurystomus Matthes 1959 -- (Poll 1971:405 [ref. 7700]). •Synonym of Synodontis polli Gosse 1982 -- (Wright & Page 2006:134 [ref. 28885], Ferraris 2007:319 [ref. 29155]). 1°Homonym. Current status: Synonym of Synodontis polli Gosse 1982. Mochokidae: Mochokinae. Habitat: freshwater.