132 
Capt. Blakiston on the Birds of the 
noveboracensis ; but Mr. Lawrence has described a second species 
as M. scolopaceusj the principal distinction of which is size. Mr. 
Ross records both species from Mackenzie River. I am inclined, 
however, to doubt the existence of M . scolopaceus as a distinct 
species, and should not be at all surprised if all Mr. Lawrence’s 
birds turned out to be females, the greater size of which obtains 
in some birds of this family. 
Tringa canutus. 
Arctic America and Hudson’s Bay ( f Fauna Bor.-Am.’). 
Tringa maritima. 
Melville Peninsula and Hudson’s Bay (‘Fauna Bor.-Am.’). 
Tringa alpina, var. Americana. 
Arctic Sea, Saskatchawan, and Hudson’s Bay (‘ Fauna Bor.- 
Am.’). Mr. Murray also records T. alpina from Hudson’s Bay, 
whence also I have seen a specimen. 
Tringa maculata. 
Common on the Mackenzie (Bernard Ross). 
Tringa wilsonii. 
Breeds within the Arctic Circle Fauna Bor.-Am.’ as T. 
pusilla of Wilson). Tringa minuta (Liesler) is also given by the 
same authority from Hudson’s Bay. Mr. Ross obtained the 
former on the Mackenzie. 
Tringa bonapartii. 
A specimen is noted from the Saskatchawan in the ‘ Fauna 
Bor.-Am.’ under the name of T. schinzii ; and Mr. Ross notices 
it as a bird of the Mackenzie, where he procured its egg. It has 
been obtained by United States Expeditions as far westward as 
the Yellowstone branch of the Missouri. 
Calidris arenaria. 
Given by Mr. Ross on the Mackenzie, is also noticed in the 
‘ Fauna Bor.-Am.,’ but no specimen is there recorded. Between 
Hudson’s Bay and Lake Winipeg I shot what I took to be the 
Sanderling. 
Ereunetes petripicatus. 
This was first given in the 1 Fauna Bor.-Am.’ on the authority 
of Hutchins from Hudson’s Bay. At York Factory, on the 
