a | BANGS — A NEW CHICKAREE 29 
1699 
tail vertebra, 121.2; hind foot, 44.5 mm. Averages of ten adults, dé sand @ Ss, 
from Digby, Nova Scotia: total length, 296.5; tail vertebra, 118.2; hind 
foot, 45.2 mm. 
Skull, type, Q adult: basal length, 38.; occipitonasal length, 44.2; zygo- 
matic width, 24.8; mastoid width, 21.4; least interorbital width, 12.8; width 
just behind postorbital processes, 13.4; length of nasals, 11.8; length of 
upper molar series, alveoli, 7.4; length of single half of mandible, 26.4 mm. 
(For further measurements see Allen, Bull. Amer. Mus. Nat. Hist., Vol. X, 
pp- 255-258, 1898.) 
Remarks.—The new form occupies really a very considerable 
geographical area—the whole spruce belt of eastern North 
America, south of Labrador —being found from northern New 
York, northern New Hampshire, and northern Maine, north 
through New Brunswick and Nova Scotia, and west into Quebec, 
Ontario, northern Michigan and northern Minnesota. 
In my review I united this form with true S. Audsonicus, and 
said that I considered the chickarees from Roan Mountain, N. C., 
and the higher Alleghanies generally, referable to it, rather than to 
S. 4. loguax. Dr. Allen challenged this arrangement, and placed 
the Alleghany specimens with /oguax. Mr. S. N. Rhoads! had 
previously discussed this point and had arrived at the conclusion 
that “In this case the /oguax intermediates of the southern 
Alleghanies give place on the balsam belts of the Great Smoky 
Mountains to a dusky, imperfectly differentiated form which differs 
almost as much from Audsonicus as does loguax.” I have not seen 
the Roan Mountain skins since, but I have in my collection 
several chickarees from the mountains of West Virginia. These 
are very nearly intermediate between S. 4. gymnicus and S. h. 
loguax. As I remember the Roan Mountain specimens, they were 
about the same. 
Sciurus hudsonicus loguax is very uniform in coloration through- 
out its range, also an extensive one, but increases in size toward 
its western limits. Specimens, however, from Indiana and 
southern Minnesota are identical in color with Connecticut 
examples. ‘The slight increase in size in the upper Mississippi 
Valley is shared, in common, with many other mammals having 
the same geographical distribution. 
1Proc. Acad. Nat. Sci., Philadelphia, p. 217, 1897. 
