124 THE FAUNA OF MONTANA TERRITORY. 
mony, colocynth, salep, acacia, galls, poppy, Conium macu- 
latum, aloe, various Euphorbias, madder and many other 
medicinal and economical plants. 

THE FAUNA OF MONTANA TERRITORY. 
BY J. G COOPER, M.D. 

(Concluded from page 84.) 
III. REPTILES. 
Horned Toan ( Tapaya Douglassii Gir.). A single speci- 
men was obtained at Fort Benton. Though found on the 
Columbia Plains this species does not seem to cross the 
mountains at this point, but probably does so by the head 
of Snake River. 
RATTLESNAKE (Crotalus confluentus Say, possibly also C. 
Lucifer B. and G.). I saw but two rattlesnakes in the Rocky 
Mountains, which were on a prairie along Hell Gate River. 
Expecting to find more I did not preserve them, but as speci- 
mens were probably obtained by Lieut. Mullan, I mention the 
localities of this and other reptiles which I did not preserve. 
All kinds were very scarce in the mountains, and this, which 
is so abundant along the Platte, is rather rare near Fort Ben- 
ton. I mention this as the species seen on the west slope 
because the Bitterroot Mountains are a far greater obstacle to — 
the migration of the O. Lucifer eastward, than the main divide | 
is to that of this, and I killed some of C. confluentus, proba- — 
bly, as high as 5000 feet above the sea on the east slope. 3 
Pine Sware (Pituophis). I also got a Pine Snake at Fort — 
Benton. E 
Green Racer ( Boscanion vetustus B. and G., or B. flaw- | 
ventris?). I saw one dead specimen of this snake along Hel . 
. Gate River in August. a 
WANDERING GARTERSNAKE ( Eutainia vagrans B. and G.) | 
Rather common along Hell Gate and Bitterroot River. 4a 




