278 PROCEEDINGS OF THE NATIONAL MUSEUM vou 86 



swamp near Hickory Withe. Inasmuch as the Campbell County 

 specimens were taken near one of the smaller tributaries of the 

 upper Cumberland River, this mouse may occur elsewhere along 

 areas drained by that river. 



For three males from Hickory Withe the measurements are, re- 

 spectively: Total length, 153, 145, 141; tail, CO, 61, 59; hind foot, 

 18.5, 19, 18. The measurements of two females from Hickory Withe 

 are, respectively: Total length, 166, 137; tail 67, 56; hind foot, 19, 19. 



Campbell County: La FoUette, 2. 

 Fayette County: Hickory Withe, 7. 



PEROMYSCUS MANICULATUS NUBITERRAE Rhoads: Cloudland White- 

 footed Mouse 



The ran"-e of this mouse so far as known is restricted to the eastern 

 part of the State, occurring chiefly at higher altitudes of the southern 

 Alleghenies. Though most plentiful in forests of the Canadian 

 Zone, they frequently occur at lower altitudes in rhododendron 

 thickets bordering cold mountain streams. Contrary to the assump- 

 tion of Rhoads (1896, p. 188) that the Cloudland deer mouse was 

 "exclusively a dweller of the balsam or spruce belt," which crowns 

 the summits of the southern Allegheny Mountains, it is now Imowii 

 to range downward into the hemlock timber as low as 2,700 feet. 



Of the 14 taken during July 1937 by Perrygo and Lhigebach near 

 Shady Valley, 4 came from a hemlock and rhododendron bog behind 

 camp (altitude 2,900 feet). The remainder were caught either among 

 moss-covered boulders in a dense hemlock forest on the southeastern 

 slope of Holston Mountains or in large-size Schuyler traps set for 

 flying squirrels on the trunks of beech and oak trees (altitude 3,800 

 feet). These mice were found on the west slope of Roan Mountain 

 in spruce and fir timber as low as 5,000 feet and up into the balsam 

 fir forest at 6.300 feet, chiefly where there was a thick undergTOwth 

 of rhododendron. Near the foot of the west slope of Low Gap, these 

 mice were trapped at an altitude of 2,700 feet around the moss- 

 covered roots of hemlock trees. The sun never penetrates in this 

 heavy hemlock timber, and the cool air may explain their presence at 

 this low level. On Inadu Knob these mice were trapj^ed at an altitude 

 of 4,500 feet in a dense rhododendron undergrowth in hemlock and 

 spruce woods and also at an elevation of 5,700 feet in birch and 

 spruce. They are somewhat arboreal, for the majority of those 

 collected on Inadu Knob were taken in large-size Schuyler traps 

 nailed to trunks of spruce trees about 6 feet above the base. On 

 the west slope of Mount Guyot and likewise on Old Black Mountain, 

 these mice were caught in runways in the moss growing around 

 the roots of balsam fir. On Snake Den Mountain, they were taken 

 at an altitude of 3,700 feet along the banks of a swift mountain stream 



