28 



tional Park, Colorado. UNIV. KANSAS PUBL. MUS. NAT. HIST. 15(13): 

 71i-7^if. 



The geology, climate and vegetation of the park are characterized. 

 Cnemidophorus velox is found mostly at lower elevations along the south- 

 ern halves of mesas and is locally abundant around the park headquart- 

 ers. Lizards were gravid in June and hatchlings were first seen at the 

 end of August. The behavior of captives is described. Endoparasites of 

 the species are listed. 



75. Dixon, J. R. and P. A. Medica. 1966. Summer food of four species 

 of lizards from the vicinity of White Sands, New Mexico. LOS ANGELES 

 CO. iMUS. NAT. HIST., CONTRIBUTIONS IN SCIENCE No. 121: 1-6. 



Cnemidophorus inornatus forages in the litter beneath vegetation. 

 A graphic representation of food items for this species is given; lepid- 

 opteran and coleopteran larvae (^1%) and coleopteran adults (12%) are 

 the main prey. Competition with Holbrookia and Sceloporus is avoided by 

 differences in foraging methods and foods eaten. 



76. DuBois, E. P. 19^3. Osteology of the skull of Cnemidophorus . 

 AMERICAN MIDLAND NATURALIST 30(2): 510-517. 



A detailed analysis is presented; species used include gularis and 

 sexlineatus. 



77. Duellmcin, W. E. and C. H. Lowe. 1953. A new lizard of the genus 

 Cnemidophorus from Arizona. CHICAGO ACADEMY OF SCIENCES NAT- 

 URAL HISTORY MISCELLANEA No. 120: 1-8. 



_C. sacki xanthonotus (= _C. burti xanthonotus ) is formally named, 

 described and diagnosed. It is known only from the Puerto Blanco and 

 Ajo Mountains, Pima County, Arizona. It occurs in relictual mesic com- 

 munities, in the juniper-oak-desert edge ecotone in canyons on west 

 slopes. These canyons have narrow rocky walls well-covered with vege- 

 tation, and have intermittent water in their bottoms. The south-facing 

 slope of the type-locality possesses typical plants of the Sonoran De- 

 sert; the north-facing slope lacks these and instead possesses Juniper - 

 us, Berberis , Ephedra , Agave and grasses. 



78. — . and R. G. ZweifeL 1962. A synopsis of the lizards of the 

 sexlineatus group (genus Cnemidophorus ). BULLETIN OF THE AMERICAN 

 MUSEUM OF NATURAL HISTORY 123(3): 155-210. 



