fraterculus, Mylocheilus Girard [C. F.] 1856:169 [5] [Proceedings of the Academy of Natural Sciences of Philadelphia v. 8; ref. 1810] Monterey, California [in error], Columbia River basin, western U.S.A. Syntypes: USNM 211 (3, plus one pair pharyngeal arches as #2768). Type catalog: Gilbert 1998:82 [ref. 23395] with remarks on locality. On p. 5 of separate. •Synonym of Mylocheilus caurinus (Richardson 1836) -- (Gilbert 1998:82 [ref. 23395]). Current status: Synonym of Mylocheilus caurinus (Richardson 1836). Leuciscidae: Pogonichthyinae. Habitat: freshwater, brackish.