38 



113. Quequedula discors Steph. Blue-winged Teal. 



Met with occasionally in the breeding season, and a few small 

 flocks seen in September. 



114. Spatula Clypeata Boie. Shoveller. Spoon-billed Duckt 

 Two or three shot near the head of Heart River in September. 



No others observed. 



115. Aix sponsa Boie. Wood Duck. 



More or less frequent on the Missouri, near Forts A. Lincoln and 

 Rice, but not met with elsewhere. 



116. Mergus cuculatus Linn. Hooded Merganser. 



Met with near the head of Heart River about July 1st, and also in 

 September, but not seen elsewhere. 



PELECANID^E. 



117. Pelecanus trachyrhynchus Lath. White Pelican. 

 One specimen obtained at Camp Thorne, September 12th. Said 



to be common on the Missouri in June, a few miles below Fort Rice. 



118. Podiceps auritus var.* californicus Coues. Eared 

 Grebe. 



A single specimen was obtained on the Yellowstone, near the mouth 

 of Tongue River, September 2d, and four or five others were seen on 

 the Great Porcupine Creek. 



IV. Report ox the Reptiles. 



Reptilian life is extremely scarce throughout the region traversed 

 by the Expedition, there being but two species very numerously rep- 

 resented, or very generally dispersed. These are the Caudisona 

 con/luenla and the Phrynosoma Douglassi. The first not only out- 

 numbers all the other Ophidians, but all the other reptiles, excluding 

 the Phrynosoma Douglassi, which may possibly exceed in numbers 

 the Caudisona conjluenta. 



The Aspldonectes spinifer, which is more or less frequent in the 

 large streams, is apparently almost the sole representative of the 

 Testudinata, as Phrynosoma Douglassi is also almost the only repre- 

 sentative of the Lacertilia. 



TESTUDINATA. 



1. Chrysemys oregonensis Agass. 



A few individuals were seen near Fort Rice, and in the vicinity of 

 Heart River, near pools of water in the prairies. 



