unidorsalis, Helogenes Glodek [G. S.] & Carter [H. J.] 1978:77, Fig. 1 [Fieldiana Zoology v. 72 (no. 6); ref. 6159] Río Bobonaza between Sarayacu and Montalvo, eastern Ecuador. Holotype: FMNH 80463. Paratypes: (6) FMNH 80464 (5). Type catalog: Ibarra & Stewart 1987:43 [ref. 12367], Ferraris 2007:134 [ref. 29155]. •Synonym of Helogenes marmoratus Günther 1863 -- (de Pinna & Vari 1995:3 [ref. 21651], Vari & Ferraris in Reis et al. 2003:258 [ref. 27061], Ferraris 2007:134 [ref. 29155]). Current status: Synonym of Helogenes marmoratus Günther 1863. Cetopsidae: Helogeninae. Habitat: freshwater.