31 



heavily on crypsis. Several species of snakes, hawks, the Collared 

 Lizard, skunks, the raccoon and armadillo are predators. Almost all 

 lizards were infected by the chigger Trombicula alfreddugesi. The po- 

 pulation near the reservation headquarters varied from W to 72 lizards 

 per acre over a ^ year period: combined percentages of first through 

 sixth year individuals in that population were 57, 25A, 10, 5A, 1.5 

 and 0.7. Loss of roughly one-half of the individuals in each age group 

 in the course of a year is indicated. 



83. — . 1970. Reproductive cycles in lizards and snakes. UNIV. 

 KANSAS MUS. NAT. HIST. MISC. PUBL. No. 52. 2^7 pp. 



This is mostly a review article and presents data on Cnemidophorus 

 exsanguis, C^. sexlineatus , C_. tesselatus , _C. tigris and _C. velox . Orig- 

 inal data are presented concerning age-size class distributions and re- 

 productive status of a population of _C. tigris marmoratus from Reeves 

 County, Texas. Males are larger than females, females may reproduce 

 when one year old, and the smallest reproductive female was 75 mm SVL. 



Zl^. Gaffney, F. G. and L. C. Fitzpatrick. 1973. Energetics and lipid 

 cycles in the lizard, Cnemidophorus tigris . COPEIA 1973(3): ^^^6-^52. 



The lipid cycles in carcass, liver and post-coelomic fat bodies 

 were determined for adults of both sexes of lizards collected near the 

 NE city limits of El Paso, Texas. Fat bodies were used for maintenance 

 during winter dormancy. The timing of reconstitution of lipid reserves 

 during the active season differed between the sexes in correlation with 

 their reproductive roles. Variation in activity between the sexes dur- 

 ing the active season is indicated. 



85. Gehlbach, F. R. 1965. Herpetology of the Zuni Mountains region, 

 northwestern New Mexico. PROC. U. S. NATL. MUS. 116(3505): 2^^3-332. 



The topography, geologic history, climate, vegetation, and recent 

 environmental changes occurring in the region are discussed in detail. 

 Cnemidophorus velox occurs in the region; historical accounts and the 

 nomenclatural history of the species are New Mexico is discussed. Data 

 on morphological variation is discussed; possible males or hybrids with 

 C_. inornatus are described. _C. velox occurs between 6000 to 8000 feet 

 and is most common at about 6'fOO feet. It prefers open areas of the 

 Roughlands life belt especially where saltbush-sage associations occur 

 in isolated patches in pinyon-juniper savanna. Notes on reproduction 

 are given. 



