55 
Juveniles 
No. 
Date 
Locality 
Sex 
Length of hair 
(dorsal) 
Mm. 
6184 
June 4 
Cape Dorset 
cT 
15 
6195 
“ 9 
* it 
& 
16 
4909 
Aug. 19 
Stratheona sound 
9 
13 
4910 
“ 19 
it 
& 
15 
4911 
“ 19 
ft 
c? 
11 
5703 
Oct. 4 
Pangnirtung fiord 
9 
24 
Adult (Summer) 
No. 
Date 
Locality 
Sex 
Length of hair 
(dorsal) 
62 IS 
June 
1 
Amadjuak bay 
? 
Mm. 
28 
6188 
it 
7 
Cape Dorset 
d" 
22 
6204 
it 
15 
it 
9 
25 
6209 
a 
17. . 
it 
9 
30 
6215 
u 
27 
Fox islands 
9 
18 
6217 
July 
15 
Cape Dorset 
9 
22 
Adult ( Winter ) 
No. 
Date 
Locality 
Sex 
Length of hair 
(dorsal) 
Mm. 
6038 
Oct. 7 
Pangnirtung fiord 
c? 
22 
6042 
“ 10 
it 
9 
30 
6051 
“ 13 
tt 
9 
28 
6057 
“ 18 
a 
c? 
25 
6086 
“ 24 
it 
& 
30 
6102 
“ 27 
it 
9 
25 
15. Dicrostonyx groenlandicus (Traill), Greenland collared lemming. 
Eskimo: Awingak, Amilto; Avingak, according to Hantzsch. 
This species is comparatively rare on Baffin island and occurs only 
locally. From 1923 to 1926, only thirteen specimens were collected, 
although reported to be common by Kumlien and by the MacMillan 
expedition. Trapping failed to secure a single specimen. The species, 
apparently, does not live in colonies. It evidently keeps to high, rocky 
ground, for none was taken in traps in lower country where trimucronatus 
was abundant. 
No trace of the animal on Baffin island was seen by the writer when 
accompanying the Canadian Arctic Expedition of 1923. It was not seen 
after arriving in Cumberland sound in July, 1924, until November 22 
when a specimen in white pelage was found dead on the ice of Pangnirtung 
fiord one mile from land. The next specimen was taken on March 14, 1925, 
in Pangnirtung fiord. The animal was not again met until June 3, 1925, 
