Considered a synonym of Catostomus bernardini Girard, 1856
- Minckley, Wendell L & P.C. Marsh. 2009. "Inland fishes of the Greater Southwest. Chronicle of a Vanishing Biota". The University of Arizona Press. 1-426 (ffm00033)
Original description as Catostomus sonorensis:
- Meek, Seth Eugene. 1902. "A contribution to the ichthyology of Mexico". Field Columbian Museum Publication. 3(6):63-128 (ffm00269)