1883.] NATURAL SCIENCES OF PHILADELPHIA. 21 



Individuals are abundant ; some of tliose taken are full of eggs. 

 All are much smaller than the true P. douglassi. 



Uta stansburiana B. and G. 



Abundant on the crags of basalt on the sides of Warner's 

 Yalley. It is also common at Summer Lake, which is the most 

 northern locality for the species and genus. 



Sceloporas graciosus B. and G. 



This very pretty species extends as far north as Summer Lake, 

 and is quite abundant. 



Sceloporas smaragdinus Cope. 



Common as far north as Summer Lake, A specimen taken 

 there has large torquoise-blue spots behind each brown cross-bar, 

 on each side of the dorsal region. 



Charina plumbea Bd. and Gird. 



I found a single specimen of this curious snake in the road 

 along the west side of Summer Lake. Although living, its 

 muscles were alternatel}' contracted in such a way as to give it the 

 appearance of a knotted root. It was very tame, allowing itself 

 to be handled without offering resistance. In life the inferior 

 surfaces are of a rich yellow. 



Pityophis mexicanus bellona B. and G. 

 From Summer Lake. 



Bascanium vetustum \i. and G. 



Common in Warner's Valley, at Summer Lake and at Klamath 

 Lake. 

 Eutaenia pickeringii B. and G. 



Yery common everywhere near water, in all parts of the Lake 

 countr3\ 



Eutsenia sirtalis sirtalis Linn. 



This species accompanies the preceding at Warner's third Lake, 

 at Summer Lake and at Goose Lake, and retains its distinctive 

 features. The specimens seen at Goose Lake have the bands 

 brighter yellow than usual, and are verj' pugnacious. They 

 preferred fighting to escaping, and bit furiously. 



Eutsenia sirtalis elegans B. and G. 



Abundant. In young specimens the dorsal spots are distinct. 



Eu taenia biscutata sp. nov. 



This is one of the best defined species of the genus. I have 

 onl}^ two specimens, which agree in the following characters. 



