affinis, Atherinopsis Ayres [W. O.] 1860:73, Fig. 18 [Proceedings of the California Academy of Sciences (Series 1) v. 2; ref. 17942] San Francisco, California, U.S.A. No types known. •Valid as Atherinops affinis (Ayres 1860) -- (Herrera 1896:41 [ref. 39336], Eschmeyer & Herald 1983:118 [ref. 9277], Matarese et al. 1989:238 [ref. 26885], McAllister 1990:124 [ref. 14674], Swift et al. 1993:131 [ref. 22379], Lavenberg & Chernoff in Fischer et al. 1995:898 [ref. 22829], Dyer 1997:47 [ref. 23262], De La Cruz Agüero et al. 1997:61 [ref. 24545], Castro-Aguirre et al. 1999:198 [ref. 24550], Ruiz-Campos et al. 2000:69 [ref. 24940], Moyle 2002:311 [ref. 26449], Nelson et al. 2004:97 [ref. 27807], Love et al. 2005:63 [ref. 37547], Page et al. 2013:99 [ref. 32708], Fourriére et al. 2016:455 [ref. 34668], Kells et al. 2016:116 [ref. 35888], Burton & Lea 2019:53 [ref. 37205], Love et al. 2021:92 [ref. 39279], Page et al. 2023:139 [ref. 40505]). Current status: Valid as Atherinops affinis (Ayres 1860). Atherinopsidae: Atherinopsinae. Distribution: Eastern Pacific: southern British Columbia (Canada) south to Pacific coast of Baja California Sur (Mexico); northern Gulf of California (Mexico). Habitat: freshwater, brackish, marine.