Contributions to the concepts of reproductive cycles and the systematics of the scalaris group of the lizard genus Sceloporus

Abstract

The concept of parity type is proposed as a criterion of relationship among members of the Sceloporus aeneus-scalaris complex, with members o S. aeneus being regarded as viviparous and those of S. scalaris, as oviparous. T viviparous S. goidmani is regarded as a relative of S. aeneus , and S. a. subnige is not regarded as intermediate between S. scalaris and S. aeneus. The propos by Davis and Smith that S. a. aeneus is oviparous and specifically distinct (as S. aeneus) from S. a. bicanthalis (as S. bicanthalis) is rejected.