Reyes, R.C., 2008. Embryogenesis and ammocoete morphological development of the Pacific lamprey (Entosphenus tridentatus Gairdner, 1836) from the American River, California. US Department of the Interior, Bureau of Reclamation.
| Species | Development state | Trait | Primary Data | Secondary Data |
| Entosphenus tridentatus | Egg | Degree-days for incubation | 12; 18-23 | 246.0 °C * day |
| Entosphenus tridentatus | Egg | Egg adhesiveness | Non-adhesive | Non-Adhesive |
| Entosphenus tridentatus | Egg | Egg size after water-hardening | 1.00 | 1.0 mm |
| Entosphenus tridentatus | Egg | Egg size after water-hardening | 1.40-1.50 | 1.45 mm |
| Entosphenus tridentatus | Egg | Egg size after water-hardening | 1.50-1.60 | 1.55 mm |
| Entosphenus tridentatus | Egg | Degree-days for incubation | 10-13; 18-23 | 235.75 °C * day |
| Entosphenus tridentatus | Larvae | Initial larval size | 4.5-6 | 5.25 mm |
| Entosphenus tridentatus | Larvae | Initial larval size | 5.6 | 5.6 mm |
| Entosphenus tridentatus | Larvae | Full yolk-sac resorption | 30 days 18 C | 30.0 °C * day |
| Entosphenus tridentatus | Larvae | Onset of exogeneous feeding | 4-12 days 18 C | 8.0 °C * day |
| Entosphenus tridentatus | Egg | Egg size after water-hardening | 1.40-1.90 | 1.65 mm |