420 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



vol. 48. 



which I am acquainted are Winnemucca, Amos, Quinn River Crossing, 

 vicinity of Pine Forest Mountains, and Virgin Valley, Humboldt 

 County, Nevada. 



Status and variation. — The series from Tallac, California, presents 

 some minor differences from specimens collected in Nevada. Thus 

 the largest specimens in the California series are smaller than the 

 largest from Deeth, Nevada. This discrepancy is best shown in 

 the tail length, 68.1 being the maximum in specimens from Tallac, 

 California, 78.8 the maximum in Deeth, Nevada, specimens. The 

 averages in tail length are likewise distinct. The femoral pores 

 vary from 10 to 15, average 12+ in Tallac specimens ; from 13 to 17, 

 average 15+ in Deeth specimens. The accompanying table will 

 show the extent of variation and averages in the specimens collected : 



Near Tallac, Lake 

 Tahoe, California. 



Nine 

 males. 



Three 

 females. 



Deeth, Elko County, 

 and near Palisade, 

 Nevada. 



Seven 

 males. 



Three 

 females. 



Near 

 Carson 



City 

 Nevada, 

 3 males. 



Head, length: 



Minimum 



Average 



Maximum 



Head, width: 



Minimum 



Average 



Maximum 



Length, snout to anus: 



Minimum 



Average 



Maximum 



Tail, length: 



Minimum 



Average 



Maximum 



Length of foreleg: 



Minimum 



Average 



Maximum 



Length of hind leg: 



Minimum 



Average 



Maximum 



Longest toe, including claw 



Minimum 



Average 



Maximum 



Femoral pores: 



Minimum 



Average 



Maximum 



Dorsal scales: 



Minimum 



Average 



Maximum 



9.5 

 10.4 

 11 



9 



9.5 

 10 



44. 

 48. 

 51. 



59 



63. 



10 



10.6 



11 



8.5 



9 



9.5 



50 



51.8 

 55 



19 



1 7 

 19.6 

 20.5 



29 



31.1 



33.5 



14.4 

 15 



16.1 



11 



58.1 



19.5 



20.2 

 21 



30 



30.9 



31.9 



15 



15.5 



16 



9.5 

 10.6 

 12 



8.5 

 10.1 

 12 



42.1 

 51.2 



58.5 



66 

 M 

 71.9 



78.8 



17 

 1 6 

 20 

 23.5 



27 



32.8 



38 



14.5 



15.8 

 17 



9.6 

 10.2 

 11 



8.3 



9.1 



10.2 



44.1 

 50.6 



58.4 



68.5 

 12 

 70 

 71.5 



17.7 



20.7 

 23.5 



27 



31.3 



34.3 



14.9 

 15.8 

 16.5 



10 



12+ 



15 



46 

 51 

 55 



13 



15+ 

 17 



48 

 53+ 



58 



10.5 

 10.9 

 11.4 



10 



10.5 



11 



51 



53.5 



56 



12 

 70 



19.5 



20.8 

 22 



31.9 

 34.1 

 35.5 



15.5 

 15.7 

 17.8 



12 

 13 

 15 



47 

 51 

 54 



1 Indicating the number of specimens from which the average was taken. 



Tallac specimens can be readily separated from the Deeth, Nevada, 

 series by their darker color. The two dorsal and the two lateral 

 rows of brown spots, often confluent, are darker, and the blue patches 

 on the bellies of the males have a stronger admixture of black. There 



