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Cabeza Prieta Natural History Association
Sonoran Desert Reptiles
Crotaphytus nebrius (Sonoran collared lizard)

 

 

Diet: smaller lizards, insects
Size: 2¾" to 4½" from nose to vent

Identification: To 4 2/5 in. (11.2 cm). Above yellowish to dull tan with conspicuous round whitish spots, large on dorsum and becoming much smaller on sides. Vague or no cross bars on body. No defined dorsal stripe on tail: tail rounded. Fore and aft black collar markings present; posterior one sometimes uninterrupted dorsally. Males: Throat slate gray or dark brown, often with a yellow cast; no black central spot. Anterior collar complete ventrally. When breeding develops burnt orange ventrolateral abdominal coloration. Small dark inguinal patches present. Female: Color duller than in male, often browner. No complete anteriour collar marking nor dark inguinal patches Orange or reddish lateral bars when gravid.


References

Excerpts from A FIELD GUIDE TO WESTERN REPTILES AND AMPHIBIANS, 3/e by Robert C. Stebbins. Copyright (c) 2003 by Robert C. Stebbins. Reproduced by permission of Houghton Mifflin Company. All rights reserved.

 

 

 

 

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