HERPETOLOGY OF ZUNI MOUNTAINS — GEHLBACH 275 



Like Bujo woodhousei, leopard frogs also feed upon the tenebrionid 

 beetle, Eleodes. 

 Locality records: 



MCKINLEY CO.: 6 mi. S. Thoreau (CU 5773, 6306, 6340; CWGF) ; Thoreau 

 (MCZ 32820-47,* 33300-05*); Ft. Wiugate (USNM 16760); Valencia co.: 

 Grants (CU 5371-3). 



Class Reptilia: Suborder Sauria 



Crotaphylus collaris collaris Say x C. c. baileyi Stejneger 



The western collared lizard, originally described as C. baileyi by 

 Stejneger (1890, p. 103) from the Painted Desert, Little Colorado 

 River, Arizona, can be characterized by its two discrete interorbital 

 scale rows, a tan or brown head with darkly spotted green to blue 

 throat (in males), and a sharply contrasting, spotted body pattern 

 (Fitch and Tanner, 1951, pp. 549-550). Bm-t (1928) s3monymized 

 baileyi with nominate C. collaris and listed (Burt, 1933, p. 229) two 

 localities in the Zuni region. Presentl}^ relegated to subspecific status, 

 C. c. baileyi is the form usually found in the Zunis. This occurrence 

 is not surprising because suitable habitats are more or less continuous 

 between the type locality and the study area. 



According to Fitch and Tanner (1951, p. 549) and Stebbins (1954, 

 p. 310), a broad zone of intergradation exists between C. c. collaris 

 and C. c. baileyi. This is evident in the Zunis, for 3 of 18 specimens 

 have one scale common to both interorbital rows. On the basis of 

 this criterion and the fact that certain Arizona specimens show a 

 similar condition (Burt, 1928, p. 11), the three Zuni individuals may 

 be labeled C. c. collaris x C. c. baileyi. It seems likely that a relativelj^ 

 smooth, east-west cline of variation is present in southwestern collared 

 lizards (see discussion under "Zoogeography," p. 315). 



Reasons for retaining subspecies in C. collaris and the description of 

 a new intermontane Utah-Colorado race, C. c. auriceps, were given 

 by Fitch and Tanner (1951). Although C. c. auriceps occurs in Monte- 

 zuma Comity, Colorado (Maslin, 1959, p. 26), and logically in San Juan 

 County, New Mexico, its characters could not be discerned in the 

 Zuni sample or in specimens from Chaco Canyon National Monument, 

 San Juan County (UMMZ 122892). This is somewhat puzzling when 

 one considers that other reptiles with similar distributions are present 

 in both areas, e.g., Sceloporus undulatus elongatus. 



Fitch and Tanner (1951, fig. 1) show modal nmnbers of 14 for both 

 supra- and infralabials of (7. c. baileyi, 13 and 12 for these respective 

 counts in C.c. auriceps. They apparently plotted labials on both left 

 and right sides of the head in the same histogram. The figm'e is 

 labeled "Numbers of Specimens" but does not agree with the number 



738-287—65 3 



