cuyanus, Basilichthys Burmeister [H. K.] 1861:534 [Reise durch die La Plata-Staaten v. 2; ref. 23859] Laguna Guanacache [from fish market at Mendoza], San Juan, Argentina. Holotype (unique): Whereabouts unknown. For English and Spanish translation see Koerber & Litz 2008:2 [ref. 29451]. •See Koerber & Litz 2008:2 [ref. 29451]. •Questionably the same as Odontesthes hatcheri (Eigenmann 1909) -- (Dyer 1998:535 [ref. 23858], Dyer 2000:109 [ref. 26677], Dyer in Reis et al. 2003:521 [ref. 27061], Mirande & Koerber 2015:50 [ref. 35117]). Current status: Uncertain as Odontesthes hatcheri (Eigenmann 1909). Atherinopsidae: Atherinopsinae. Habitat: freshwater.