Interior of British North America. 153 



117. Chroicocephalus franklinii. 



Franklin's Rosy Gull, described from the Saskatchawan, was 

 found by myself ('Ibis/ vol. iv. p. 10) to be common on the 

 lakes of the buffalo-plains in summer, where it breeds. 



118. Chroicocephalus Philadelphia. 



Bonaparte's Gull, under the name of bonapartii, is given in 

 the ' Fauna Bor.-Am./ and by Mr. Bernard Ross, from Mac- 

 kenzie River. I found it in great numbers at the mouth of Hayes 

 River, on the west coast of Hudson's Bay ('Ibis,' vol. iv. p. 10). 

 Mr. Murray also gives it from the same coast ; and the Smith- 

 sonian Institution contains one from Nelson River. 



RiSSA TRIDACTYLA. 



Interior and Hudson's Bay ('Fauna Bor.-Am.'). 



RiSSA SEPTENTRIONALIS. 



Mackenzie River (Bernard Ross). 



Pagophila eburnea. 



Hudson's Bay ('Fauna Bor.-Am.'). 



Sterna caspia. 



Mackenzie River (Bernard Ross). 



Sterna wilsonii. 



Mackenzie River (Bernard Ross). Specimen from Nelson 

 River in Smithsonian Institution. 



Sterna macroura. 



I received a specimen of the American Arctic Tern from my 

 friend Mr. J. R. Clare, in charge of York Factory, Hudson's 

 Bay. Mr. Bernard Ross gives it on Great Bear Lake. The 

 ' Fauna Bor.-Am.' mentions it under the name of S. ardica, as 

 also does Mr. Murray, from Hudson's Bay. 



Sterna forsteri. 



The 'Fauna Bor.-Am.' gives S. hirundo from the Saskatchawan, 

 which in Professor Baird's Report is referred to this species. 

 Mr. Murray also notes S. hirundo from Hudson's Bay. 



119. Hydrochelidon plumbea. 



My specimen (' Ibis,' vol. iv. p. 10), as well as one called in 

 the ' Fauna Bor.-Am.' Sterna nigra, are from the Saskatchawan ; 



VOL. V. M 



