McAda, C.W. and Wydoski, R.S., 1983. Maturity and fecundity of the bluehead sucker, Catostomus discobolus (Catostomidae), in the Upper Colorado River Basin, 1975-76. The Southwestern Naturalist, 28(1), pp.120-123.
| Species | Development state | Trait | Primary Data | Secondary Data |
| Catostomus discobolus | Egg | Oocyte diameter | 1.55-2.25 | 1.9 mm |