17 



attributed to the aggressive nature of the latter, its preference for 

 disturbed habitats (which are increasing), and its ability to reproduce 

 in areas where the food supply cannot support two individual lizards. 



*0. — . 1973. Natural and artificially induced oviducal and ovarian 

 growth in two species of Cnemidophorus (Sauria: Teiidae). HERPETO- 

 LOGICA 29(3): 195-20^. 



The parthenogenetic species (C_ neomexicanus ) is identical to the 

 normal species (C_. inornatus ) in both the natural histological changes 

 of the oviduct and those induced by hormones. Lizards were collected in 

 Albuquerque. 



41. — . and W. G. Degenhardt. 1969. An unusual variant of the whip- 

 tail lizard Cnemidophorus gularis (Sauria, Teiidae) from New Mexico. 

 TEXAS 30URNAL OF SCIENCE 21(1): 95-97. 



A morphologically variant specimen was collected from dense mes- 

 quite within the city limits of Carlsbad. It is compared to the 10 

 known specimens from the state, and to 10 specimens of C. exsanguis 

 selected because of superficial similarity to the variant. It is con- 

 cluded that the specimen is a good _C. gularis . 



<f2. — , — . emd J. E. White. 1971. Habitat preferences of Cnemido - 

 phorus inornatus and Cnemidophorus neomexicanus with reference to con- 

 ditions contributing to their hybridization. COPEIA 1971(2): 357-359. 



Habitat preferences for both species within Albuquerque are des- 

 cribed. _C. inornatus was found almost exclusively in dense grass. _C. 

 neomexicanus was found only in sparsely vegetated areas and areas with 

 large herbs and shrubs, and was closely associated with man-made objects 

 such as trash piles, hedgerows, ditches and fences. Areas where pre- 

 ferred microhabitats come into close enough proximity to permit inter- 

 specific contact are described. Hybrids from these areas are described. 



43. — . and A. J. Ladman. 1968. The reproductive morphology of 

 Cnemidophorus neomexicanus X Cnemidophorus inornatus hybrid males. 

 JOURNAL OF MORPHOLOGY 125(3): 367-378. 



Morphometric analyses support the contention that the 6 specimens 

 are indeed hybrids. Histology of the gonads and epididymides is des- 

 cribed; notable differences between the hybrids and normal males is dis- 

 cussed. Sperm produced by the hybrids appear to be viable; potential 

 gametogenic abnormalities resulting from their incorporation in a zygote 



