Abstract

This study is concerned with a critical analysis of species and subspecies of Uta stansburiana as it occurs in the Eastern Great Basin. In this study Urosaurus ornatus wrighti is also briefly discussed since it was until recently considered a member of the genus Uta and since it extends in the area which has been dealt with in this thesis. This problem necessitated study of large series of lizards in order to work out subspeciation. The material from the Brigham Young University collection and the specimens collected by the author total 520. After recording dorsal scale counts, prefrontal scales, keelation of dorsal scales, and various measurements, the two subspecies were ascribed to the following areas. Uta s. stansburiana ranges throughout Eastern Oregon, Idaho, most of the Eastern Great Basin and south to Northern Arizona. Uta s. stej, negeri ranges from Northern Mexico, Western Texas, and most of New Mexico north into Southern Utah and Southern Nevada. In order to support this study four drawings and two distributional maps have been made as well as five tables showing the taxonomic records of the subspecies.

Degree

MS

College and Department

Plant and Wildlife Sciences

Rights

http://lib.byu.edu/about/copyright/

Date Submitted

1951-05-01

Document Type

Thesis

Handle

http://hdl.lib.byu.edu/1877/Letd263

Keywords

Lizards

Language

English

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