1908.] REPTILES AND BATRACHIANS. 501 



Peace. From several reliable sources I secured also information of 

 its occurrence on the plains of Salt River, which enters the Slave near 

 Fort Smith. This locality is said to mark its northern limit. 



Richardson records the occurrence of Tropidinotus sirtalis on Ser- 

 pent Lake, a short distance south of Isle a la Crosse Lake." 



Bufo lentiginosis woodhousei B. & G. Western Toad. 



This form of the common toad is abundant along the Athabaska 

 and Slave north at least to Fort Smith, where we took an adult, 

 June 21, 1901. The species was common in the swamps at Fort 

 Chipewyan, on June 3, 1003, and was then depositing its eggs and in 

 full voice. 



Cope records a specimen taken by Kennicott on Athabaska River 

 | below the Clearwater].'' 



Rana pipiens Gmel. Leopard Frog. 



Specimens of this frog were collected at Smith Landing in June, 

 1901, and the species was observed also at Fort Smith: It was not 

 seen farther north. 



Rana cantabrigensis latiremis Cope. Northern Wood Frog. 



This is the common frog throughout the region north to Great 

 Bear Lake and the lower Mackenzie. In the course of our journeys 

 we collected a large series, comprising specimens from the following 

 localities.: Fifty miles north of Edmonton; Fort Chipewyan; Slave 

 River (near mouth of Peace) ; Smith Landing; Fort Smith; Fort 

 Resolution; Fort Rae; Grandin River; Lake St. Croix; Fort Provi- 

 dence; Willow River; Fort Simpson; mouth of Nahanni River; Birch 

 Island, 90 miles below Fort Wrigley; Fort Norman; and site of old 

 Fort Good Hope. 



At most of these localities we found the species common. Along 

 the canoe route north of Fort Rae it was only occasionally seen, and 

 none were observed about Great Bear Lake, probably on account of 

 the late date of our visit. Richardson records frogs, undoubtedly of 

 this species, from Fort Franklin, where he says they croak loudly 

 in the beginning of June/' Boulenger, under the name R. canta- 

 brigensis, records specimens taken by Richardson at Great Bear 

 Lake."* Cope records specimens from Athabaska River, Fort Reso- 

 lution, Big Island, and Fort Simpson. The frogs reported by Mac- 

 Farlane as found on Anderson River f were undoubtedly of this 

 species. 



"Arctic Searching Expedition, I, p. 98, 1851. 



6 Batrachia of N. Am. (Bull. 34, U. S. Nat. Mus.), p. 284, L889. 



'Antic Searching Expedition. II, p. 255, 1851. 



17 Cat. Batr. Salientia Brit. Mus., p. 4.".. 1882. 



' Batrachia of X. Am. (Bull. 34, U. 8. Nat. .Mus.). pp. 437, 4::s. 1889. 



f Canadian Record of Science, IV, p. 52, 1S90. 



