22 FIELD COLUMBIAN MUSEUM ZOOLOGY, VOL. III. 



indicate two species. It is desirable to obtain specimens from 

 Lake Simcoe, the type locality, for comparison, and these, unfor- 

 tunately, I do not possess, but I am satisfied, judging from the 

 present series and the Trout Creek specimen, that both the light 

 and dark forms will also be found there. At Murray Bay, although 

 every effort was made for over two weeks to obtain specimens of 

 Evotomys, none were taken. The following is a description of 

 the dark style : Specimen from Lake Edward, No. 724, taken 

 August 5, 1900. Head and upper parts very dark rich chestnut; 

 sides dark, thickly lined with buff : sides of nose yellowish ; 

 cheeks and under parts silvery white, the dark base of the hairs 

 showing through. Hands and feet brownish black, nails hidden 

 by tufts of white hairs. Tail brownish black above, grayish 

 beneath, tip black ; ears like the back. Measurements : Total 

 length, 146 mm.; tail vertebrae, 43; hind foot, 20. This problem 

 requires further investigation. It will be noticed that the above 

 description does not at all indicate typical gapperi. Mr. Bailey 

 does not speak of the dark form here described, in his paper on 

 Evotomys* and he did not have any specimens from Lake Simcoe. 

 " I took the red-backed vole as low down as 25 feet above sea 

 level at Dalhousie, New Brunswick, finding them among the 

 rocks and logs of Dalhousie Mountain. At Lake Edward they 

 were also fairly common, living under old logs, their runways 

 extending in every direction through the deep moss on the 

 steeper hillsides ; in fact, this vole, in my opinion, lives almost 

 wholly on sloping ground, for I've never taken any on level 

 ground anywhere. I searched for it, but without success, at 

 Murray Bay, and do not believe it is found there, while at 

 Riviere du Louponly one imperfect specimen was taken." 



(T. S.) 



12. Microtus pennsylvanicus. 



Microtus pennsylvanicus. Ord. Guthr. Geog. , 1815, 2d ed. , 

 p. 292. 



Fifteen specimens from Dalhousie, Restigouche River, Murray 

 Bay and Lake Edward. 



This species appeared to be more common in New Brunswick 

 than in Quebec, as only 4 specimens were procured at Murray- 

 Bay and i at Lake Edward. M. chrotorrhinus, Miller, was not 

 obtained. 



"Meadow voles were apparently more common in a wet 

 meadow at Dalhousie, New Brunswick, than elsewhere, but I 



*Proc. Biol. Soc. Wash., 1897, p. 113. 



