Bestgen, K.R. and Platania, S.P., 1990. Extirpation of N otropis simus simus (Cope) and N otropis orca Woolman (Pisces: Cyprinidae) from the Rio Grande in New Mexico, with Notes on Their Life History.
| Species | Development state | Trait | Primary Data | Secondary Data |
| Notropis simus simus | Egg | Egg size after water-hardening | 0.60-1.28 | 0.94 mm |