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A New Subspecies of Lizard, Cnemidophorus sacki, from Michoacán, México cover

A New Subspecies of Lizard, Cnemidophorus sacki, from Michoacán, México

By William Edward Duellman
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Nature/Gardening/AnimalsScience - Biology

About This Book

A herpetological study documents and names a distinct subspecies of Cnemidophorus from the Tepalcatepec Valley in Michoacán, Mexico, designating a holotype and paratypes and providing detailed morphological diagnosis. The author reports large adult size, counts of dorsal granules and femoral pores, characteristic scutellation, and a male color pattern with fused paravertebral spots and a pink throat bearing a blue median marking. Measurements, variation among sexes and ages, and ontogenetic changes from striped juveniles to spotted, suffused adult patterns are described. The paper compares the population with neighboring subspecies to justify its taxonomic status and includes figures illustrating head scutellation and juvenile pattern.

About the Author

Duellman, William Edward portrait

William Edward Duellman

William Edward Duellman is a prominent herpetologist known for his extensive research on amphibians and reptiles, particularly in Central America and Mexico. His work has significantly contributed to the understanding of the biodiversity and taxonomy of these species. Among his notable publications is "A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, México," which highlights the unique amphibian populations in that region. Duellman's research not only aids in the classification of various species but also emphasizes the importance of conservation efforts in their native habitats.

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