Atherinella elegans (the Fuerte silverside) is a species of fish in the family Atherinopsidae, the Neotropical silversides. It is endemic to the Río del Fuerte, Sinaloa, Mexico.
References
Further reading Phylogenetic relationships and reclassification of menidiine silverside fishes with emphasis on the tribe Membradini. B Chernoff, Proceedings of the Academy of Natural Sciences of Philadelphia Vol. 138, No. 1 (1986), pp. 189-249 Systematics of American atherinid fishes of the genus Atherinella. I. The subgenus Atherinella. B Chernoff, Proceedings of the Academy of Natural Sciences of Philadelphia Vol. 138, No. 1 (1986), pp. 86-188