Females and males average between 9 and 19 cm at sexual maturity, although females tend to be larger (Tinkle & Ballinger, 1972).
Tinkle, D. W., and Ballinger, R. E. 1972. Sceloporus undulatus: A study of the intraspecific comparative demography of a lizard. Ecology 53: 570-584.
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