Heins, D.C., Baker, J.A. and Tylicki, D.J., 1996. Reproductive season, clutch size, and egg size of the rainbow darter, Etheostoma caeruleum, from the Homochitto River, Mississippi, with an evaluation of data from the literature. Copeia, 1996(4), pp.1005-1010.
| Species | Development state | Trait | Primary Data | Secondary Data |
| Etheostoma caeruleum | Egg | Egg size after water-hardening | 1.48-1.51 | 1.5 mm |
| Etheostoma caeruleum | Egg | Oocyte diameter | 0.98-1.43 | 1.21 mm |
| Etheostoma caeruleum | Egg | Egg size after water-hardening | 1.36-1.60 | 1.48 mm |