semotilus, Protistius Cope [E. D.] 1874:66 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 26; ref. 933] Andes, Peru, elevation 12000 feet. Holotype (unique): ANSP 14404. Type catalog: Böhlke 1984:24 [ref. 13621]. •Valid as Basilichthys semotilus (Cope 1874) -- (Pequeño 1989:51 [ref. 14125], Dyer 1997:50 [ref. 23262], Dyer 1998:536 [ref. 23858], Dyer & Gosztonyi 1999:215 [ref. 24265], Dyer 2000:85 [ref. 26678] as cf. semotilus, Dyer 2000:105 [ref. 26677], Dyer in Reis et al. 2003:518 [ref. 27061], Reis et al. 2016:17 [ref. 34496], Meza-Vargas et al. 2022:4 [ref. 39566]). Current status: Valid as Basilichthys semotilus (Cope 1874). Atherinopsidae: Atherinopsinae. Distribution: South America: Pacific slope (Peru) endemic. Habitat: freshwater.