Considered a synonym of Rhinichthys osculus (Girard, 1856)
- La Rivers, I.. 1994. "Fishes and fisheries of Nevada". University of Nevada Press, Reno, Nevada. 1-782 (ffm04574)
Original description as Ceratichthys ventricosus:
- Cope, Edward D. 1874. "On the Plagopterinae and the ichthyology of Utah". Transactions of the American Philosophical Society. 14:129-139 (ffm00164)