Considered a synonym of Catostomus bernardini Girard, 1856
- Gilbert, Carter R.. 1998. "Type catalog of Recent and fossil North American Freshwater fishes: families Cyprinidae, Catostomidae, Ictaluridae, Centrarchidae and Elassomatidae". Florida Museum of Natural History, Special Publication No. 1. 1-284 (ffm00083)
Original description as Catostomus conchos:
ZooBank:7C783694-64B1-4D4D-9982-40F0E20F7B00.
- Meek, Seth Eugene. 1902. "A contribution to the ichthyology of Mexico". Field Columbian Museum Publication. 3(6):63-128 (ffm00269)