Media type: E-Article Title: Relationship of Two Whiptail Lizards (Genus Cnemidophorus) in Western Mexico Contributor: Zweifel, Richard G. imprint: JSTOR, 1961 Published in: Copeia Language: Not determined DOI: 10.2307/1440181 ISSN: 0045-8511 Keywords: Animal Science and Zoology ; Aquatic Science ; Ecology, Evolution, Behavior and Systematics Origination: Footnote: