Heins, D.C. and Machado, M.D., 1993. Spawning season, clutch characteristics, sexual dimorphism and sex ratio in the redfin darter Etheostoma whipplei. American Midland Naturalist, pp.161-171.
| Species | Development state | Trait | Primary Data | Secondary Data |
| Etheostoma whipplei | Egg | Oocyte diameter | 1.17-1.27 | 1.22 mm |