ranee of this species in New Mexico is reviewed. 



2ii3. — . 1966. Variation in two sympatric whlptall lizards (Cnemido - 

 phorus inornatus and _C. velox) in New Mexico. SOUTHWESTERN NAT- 

 URALIST 11(1): 5^-71. 



These lizards are reported as sympatric sibling species in New 

 Mexico. The nomenclatural history of each is reviewed. Morphological 

 characteristics are compared; north-south oriented clines are present 

 in both species. Distinguishing features are given for both species. 

 Marked ecological differences were found: C. velox is primarily an in- 

 habitant of oak-mountain mahogany and pinyon-juniper associations with 

 little or no grass cover whereas _C. inornatus inhabits primarily grass- 

 land associations whether primary or overgrazed and replaced by pioneer 

 invaders. 



2(jif. _. 1968. Variation in 3 sympatric sibling species of whiptail 

 lizards (genus Cnemidophorus ). 3. OF HERPETOLOGY 1(1/^*): 1-20. 



Specific relationships between Cnemidophorus inornatus , C. uni- 

 parens and C. velox are examined. Variation in meristic characters 

 from sympatric populations of at least 2 of the species in Arizona, 

 New Mexico and Chihuahua is discussed. Geographic and ecological char- 

 acteristics of the 3 species are discussed with particular emphasis on 

 areas of sympatry. Four specimens representing possible hybrids between 

 C. inornatus and C. uniparens are examined. It is concluded that the 3 

 forms discussed are readily distinguishable on the species level and a 

 key is provided. 



21*5. — . 1969. Status of the name Cnemidophorus perplexus Baird and 

 Girard (Teiidae). HERPETOLOGICA 25(1): 67-69. 



The history of application of the name is reviewed, and a recom- 

 mendation of complete removal of the name from availability within the 

 genus is made. 



2*6. — . 1971. Cnemidophorus neomexicanus . CATALOGUE OF AMER- 

 ICAN AMPHIBIANS AND REPTILES: 109.1-109.3 



A summary of information on the species, including a bibliography 

 and range map, is provided. The major part of the species' distribution 

 is on sandy soils within the Rio Grande floodplain, vvhere periodic 

 flooding maintains perpetually disturbed situations. It can also be 

 found at the edges of playas, sandy arroyos and washes, and in other 



