502 THE AMERICAN NATURALIST. VoL XXXII. 
Said by Stearns to be found occasionally on the southern 
coast of Labrador. I found it common at Lake Edward, 
Quebec, and it is probable that its range does reach Labrador. 
42. MUSTELA AMERICANA Turton. Sable; marten. 
Mustela americana. Turton’s Linneus. Vol. i p. 60. 
1806. 
True M. americana probably occurs in southern Labrador, 
though I have seen no specimens. I took it at Lake Edward, 
Quebec. The form described below as M. brumalis is so dif- 
ferent from true M. americana, that in the lack of any inter- _ 
mediate specimens I can feel justified only in regarding it as 
a distinct species. Low’s remark, that “the largest and darkest 
skins are taken along the edge of its northern limits,” also 
inclines me to the belief that two forms are found in Labrador, 
and that they are specifically distinct. 
A complete series of good specimens from points along the 
whole peninsula would be of the greatest interest, and is one 
of the things to be hoped for in the future, as marten are 
common all through the Labrador Peninsula north to the tree 
limit. ! 
43. MUSTELA BRUMALIS sp. nov. North Labrador marten. 
Type. From Okak, Labrador; skull, adult (probably ¢) 
No. 7417, collection of E. A. and O. Bangs. Obtained by 
J. D. Sornborger in the summer of 1897 from the Eskimo. 
Specific Characters. Skull large, powerful, and heavy; ros- 
trum very short and broad; frontals highly arched ; auditory 
bullæ very large and deep; dentition extremely heavy through- 
out, the last upper molar in particular being very large; the 
tooth row a good deal crowded. 
External characters unknown. 
Measurements. Skull, the type, adult (probably 4). Basilar 
length of Heusel, 78.6; zygomatic breadth, 51 ; mastoid breadth, 
38.8; inter-orbital breadth, 19.6; breadth between post-orbital 
processes, 23.8; width of muzzle across canines, 17.2; greatest ` 
length of auditory bulla, 17.2; greatest length of single half 
of mandible, 58.4; length from front of canine to back of last 
molar (upper jaw, alveoli), 30.6. 
