Trachydoras is a genus of fish in the family Doradidae native to South America.
Species There are currently 6 recognized species in this genus: Trachydoras brevis (Kner, 1853) Trachydoras gepharti Sabaj Pérez & Arce H., 2017 Sabaj, M.H. & Arce Hernández, M. (2017): Taxonomic assessment of the Hard-Nosed Thornycats (Siluriformes: Doradidae: Trachydoras Eigenmann 1925) with description of Trachydoras gepharti, n. sp. Proceedings of the Academy of Natural Sciences of Philadelphia, 166 (1): 1-53. Trachydoras microstomus (C. H. Eigenmann, 1912) Trachydoras nattereri (Steindachner, 1881) Trachydoras paraguayensis (C. H. Eigenmann & Ward, 1907) Trachydoras steindachneri (Perugia, 1897)
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