A Duellman, William Edward 1930-2022 creator text utu 2010 monographic en 1 online resource : multiple file formats "A New Subspecies of Lizard, Cnemidophorus sacki, from Michoacán, México" by William E. Duellman is a scientific publication written in the mid-20th century, specifically in the early 1960s. This work focuses on the systematic study and classification of a newly identified subspecies of the lizard Cnemidophorus sacki found in Michoacán, Mexico. It contributes to the field of herpetology by providing detailed descriptions and distinguishing characteristics of this subspecies. In the publication, Duellman describes the distinctive features of the Cnemidophorus sacki zweifeli, elaborating on its size, coloration, and morphological differences compared to other subspecies. The study includes a holistic examination from field studies, discussing habitat preferences, variations in size and color, and sexual dimorphism. Additionally, the lizard's ecological behavior during different seasons and its geographic distribution within the Tepalcatepec Valley is thoroughly analyzed. The work not only provides insights into this particular subspecies but also highlights the importance of taxonomy and field research in understanding biodiversity. (This is an automatically generated summary.) Release date is 2010-08-23 Produced by Chris Curnow, Tom Cosmas, Joseph Cooper and the Online Distributed Proofreading Team at http://www.pgdp.net Original publication data not identified Lizards QH Original publication data not identified https://www.gutenberg.org/ebooks/33508 https://www.gutenberg.org/ebooks/33508 UtSlPG 260607 20260610133750.0 33508