elegans, Atherinella crystallina Chernoff [B.] 1986:182, Figs. 46, 53-57 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 138 (no. 1); ref. 5848] Río del Fuerte about 1.6 kilometers below San Blas, Sinaloa, Mexico. Holotype: UMMZ 172286. Paratypes: ANSP 158518 (10); UMMZ 164531 (22), 164605 (6), 164615 (228 or 238), 164625 (93 or 88), 164625-cs (5, c&s), 178282 (182), 178291 (46), 213590 (124). •Valid as Atherinella elegans Chernoff 1986 -- (Espinosa Pérez et al. 1993:58 [ref. 22290], Dyer in Reis et al. 2003:516 [ref. 27061], Nelson et al. 2004:97 [ref. 27807], Scharpf 2007:6 [ref. 30398], Page et al. 2013:99 [ref. 32708], Page et al. 2023:138 [ref. 40505]). Current status: Valid as Atherinella elegans Chernoff 1986. Atherinopsidae: Menidiinae. Distribution: Southern North America: Del Fuerte River basin, Sinaloa (Pacific slope of Mexico). Habitat: freshwater.