130 Bailey The American Voles of the Genus Evotomys. 



Evotomys carolinensis Merriam. 



Evotomys carolinensis Merriam, Am. Jour. Sci., vol. XXXVI, p. 4<>0, 

 Dec., 1888. 



Type locality. Roan Mountain, North Carolina; altitude 6000 feet [1830 

 meters]. 



Geographic distribution. Boreal parts of Alleghany Mountains of North 

 Carolina, Tennessee, and West Virginia. 



General characters. Size large; hind foot, 20mm. or more ; tail long; 

 color dark and rich; molars larger than in any other American species.* 



Color. Fall summer pelage: back dark chestnut, blending gradually 

 with bistre of sides, face, and rump ; darkened everywhere above with 

 numerous black hairs ; belly varying from white to buffy-ochraceous, the 

 under fur showing through ; fur covering side glands of male forming an 

 inconspicuous spot slightly darker than surrounding fur; ears dusky; 

 feet grayish brown ; tail indistinctly bicolor, gray below, blackish above, 

 and all round at tip. Winter pelage (February, March, and April speci 

 mens) : paler and brighter ; back brighter ferruginous, belly averaging 

 whiter; sides bufFy-ochraceous instead of bistre ; ears slightly rufous 

 tipped. Young darker than adults. 



Cranial characters. Skull, compared with that of E. gapperi, larger, 

 wider, and more angular, with audital bullse relatively smaller, flatter, 

 and more elongated; basioccipital wider between bullse; molars larger 

 and especially wider and heavier ; enamel surface of upper incisors 

 darker yellow. 



Measurements. Average of 4 adults (2 <$ and 2 9) from type locality, 

 measured in flesh by Dr. C. Hart Merriam : total length, 149 ; tail verte 

 bra, 44 ; hind foot, 20. 2. Skull (a fully adult 9 , No. 73 1 15) : basal length, 

 23.5; nasals, 7.5; zygomatic breadth, 14.4; mastoid breadth, 12; alve 

 olar length of upper molar series. 6. 



General remarks. Evotomys carolinensis is readily distinguished from all 

 other eastern forms by its larger size and darker coloration. Specimens 

 in the same pelage should be used for comparison, as the lightest phase 

 of winter pelage in carolinensis matches the darkest summer phase of 

 gapperi. 



Specimens examined. Total number, 87, from 3 localities. 

 North Carolina: Roan Mountain, 47 ; Highlands, 2. 

 West Virginia: Travellers Repose, Pocahontas County, 38. 



Evotomys ungava sp. nov. 



Type from Fort Chimo, Ungava. No. |f|-|, $ ad., Merriam Coll. Col 

 lected by L. M. Turner, May 12, 1883. Original number, 317. 



General characters. Size about as in gapperi ; tail and feet slender ; ears 

 very small, not projecting beyond fur; colors dull; tail bicolor; skull 

 slender; rostrum not decurved. 



* Only exceeded in size by the molars of E. rufocanus of Europe. 



