MILLER: MAMMALS OF ONTARIO. 
19 
defined and extending: from a little in front of ears nearly to base of 
tail, very dark blackish seal-brown with a few scattered grayish hairs 
(most numerous across the shoulders) ; sides very pale wood-brown 
slightly tinged with olive and sparsely sprinkled with blackish 
hairs; belly dirty yellowish white. 
£ ad. (No. 4214, Peninsula Harbor, Ontario, September 27, 
1896) ; similar to No. 4215 but sides more strongly tinged with 
olive and much more heavily sprinkled with blackish hairs. 
These two specimens represent the extreme phase of 4 fuscoclor- 
salts .’ They have darker backs and more sharply contrasted paler 
sides than in the type. 
9 ad. (No. 4212, Nepigon, Ontario, September 12, 1896); dorsal 
stripe less sharply defined than in Nos. 4214 and 4215, sepia slightly 
mixed with gray; sides as in No. 4215 but more strongly tinged 
with olive, especially along edge of dorsal stripe. 
This specimen closely resembles a topotype, and four skins from 
Lake Edward, Quebec. It may be considered as representing the 
typical phase of \fuscodor sails. ’ The typical phase is connected 
with the extreme dark phase by intermediates of which No. 4211, $ 
ad. Nepigon, Ontario, September 11, 1896, is a fair representative. 
Two specimens in my collection and many in the Bangs collection 
connect the typical phase of 4 fuscodorsalis ’ with gupperi. The 
two intermediate Ontario skins are colored as follows: — 
9 ad. (No. 4213, Nepigon, Ontario, September 17, 1896) ; dorsal 
stripe blackish seal-brown as in the darkest 4 fuscodorsalis] but 
slightly intermixed with rufous ; sides pale rufous becoming darker 
and richer along border of dorsal stripe. 
£ (No. 4205, Peninsula Harbor, October 11, 1896); much like a 
dull-colored immature specimen of gapperi , but with a faintly indi¬ 
cated brownish dorsal stripe; sides and back both distinctly suffused 
with rufous. 
While No. 4213 might be considered merely an abnormal example 
of 4 fuscodorsalis, ’ No. 4205 is so perfectly intermediate between 
this and gapperi that I am unable to decide to which it should be 
referred. 
Piienacomys latimanus Merriam. 
At Peninsula Harbor I took seven specimens of the vole which 
Dr. C. Hart Merriam described a few years ago as a new species 
under the name Phenacomys latimanus. The species has hitherto 
