Considéré comme synonyme junior de Catostomus plebeius Baird & Girard, 1854
- Smith, G.R. 1966. "Distribution and evolution of the North American catostomid fishes of the subgenus Pantosteus, genus Catostomus". Miscellaneous Publications, Museum of Zoology, University of Michigan. (129):1-132 (ffm00374)
Décrit initialement sous Catostomus (Acomus) generosus:
- 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)