Original description as Catostomus bernardini:
- Girard, Charles Frederic. 1856. "Researches upon the cyprinoid fishes inhabiting the fresh waters of the United States, west of the Mississippi Valley, from specimens in the museum of the Smithsonian Institution". Proceedings of the Academy of Natural Sciences of Philadelphia. 8:165-213 (ffm04542)
- Catostomus conchos Meek, 1902, with type locality at Río Conchos at Jiménez, Chihuahua, Mexico. Determiner: Gilbert, 1998
- Catostomus sonorensis Meek, 1902, with type locality at Río Paphigochic, Río Yaqui system, Miñaca, Chihuahua, Mexico. Determiner: Minckley et al., 2009
Conservation: Catostomus bernardini is evaluated by the international union for the conservation of nature in the iucn red list of threatened species as (LC) least concern (2018).