borealis, Opsopoeodus Harper [F.] & Nichols [J. T.] 1919:266, Pl. 15 (fig. 2) [Bulletin of the American Museum of Natural History v. 41 (art. 2); ref. 15213] Lake Athabaska at Fort Chipewyan, Alberta, Canada. Holotype (unique): NMC [ex Victoria Mem. Mus.] 1048 (lost). Type catalog: Gilbert 1978:30-31 [ref. 7042], McAllister 1965:10 [ref. 22019], Gilbert 1998:51 [ref. 23395]. •Synonym of Notropis hudsonius (Clinton 1824) or possibly based on a hybrid -- (Gilbert 1978:21, 31 [ref. 7042], Gilbert 1998:51 [ref. 23395]). •Synonym of Notropis hudsonius (Clinton 1824) -- (Scott & Crossman 1998:463 [ref. 24570]). •Synonym of Hudsonius hudsonius (Clinton 1824). Current status: Synonym of Hudsonius hudsonius (Clinton 1824). Leuciscidae: Pogonichthyinae. Habitat: freshwater.