APPENDIX. 507 
Sumass, and on the trail that crosses the Cascade range 
from Fort Hope to Colville. 
All the Garter snakes found along the course of Bndy. 
Line are very similar to each other, not only in habit 
but in the distribution of the markings; all are harm- 
less, and may be handled with impunity. 
Petvornis Witkesu. (Baird and Girard.) 
Oregon Bull Snake. 
This snake attains a much larger size than any other 
species in this district; I have frequently seen them 
three or four feet long. The snake is common on 
both sides of the Cascades; in the spring it keeps on 
the grassy prairie land, but in the hot weather retires 
to the shores of lakes and ponds, or the margins of 
streams, and spends much of its time in the water. 
Although quite harmless, it assumes a most menacing 
attitude when suddenly surprised on the open plain, 
curling itself up into a spiral, and hissing furiously. 
I obtained one very large specimen near Colville, 
another at Sumass, and a third near the foot of the 
Galton Mountains. I never saw it on Vancouver Island, 
although I think it is very likely that it lives there in 
the open valley land. 
I obtained another species of Petuophis, but it has 
not yet been determined or named. 
ELGARIA GRANDIS. (Baird and Girard.) 
Banded Elgaria. 
I obtained this beautiful lizard at the Blacksmith’s 
Camp, on the Chelukweyuk river; I also saw it at 
x 2 
