The reproductive cycle of the Great Basin Collared lizard, Crotaphytus bicinctores was studied by a histological examination of museum specimens. Mean clutch size (n = 13) was 3.46 ± 1.1 SD, range: 2-6. Histological evidence indicates that two clutches may be produced in the same year. The reproductive season includes spring and early summer. There was a significant positive correlation between female body size (SVL) and clutch size (P = 0.03). The smallest reproductively active male and female C. bicinctores measured 81 mm and 78 mm SVL, respectively.
Goldberg, Stephen R. and Mahrdt, Clark R.
"Reproduction in the Great Basin Collared Lizard, Crotaphytus bicinctores (Squamata: Crotaphytidae),"
Bulletin of the Southern California Academy of Sciences:
Available at: http://scholar.oxy.edu/scas/vol110/iss3/6