914:88)
reported that he saw individuals of this species "in the extreme
northwestern corner" of Harding County. However, the limits of the
presently known range of the species are approximately 150 miles distant
from that area.

~Sciurus niger rufiventer~ E. Geoffroy St.-Hilaire, 1803.--The fox
squirrel presently is unrecorded from much of the West River part of
South Dakota. Hoffmann _et al._ (1969:589), however, recently have
reported specimens from along the Yellowstone River in eastern Montana
and this squirrel now may occur also along the Little Missouri River. It
was not surprising, therefore, when residents of Camp Crook reported to
us that in recent years they have seen what were believed to be fox
squirrels along the Little Missouri near that town. Specimens now are
needed to verify these reports.

~Lagurus curtatus pallidus~ (Merriam, 1888).--The sagebrush vole
undoubtedly occurs, albeit probably uncommonly, in areas of sage in
northwestern Harding County, because specimens have been taken recently
a few miles north and west of the county in North Dakota and Montana,
respectively. We trapped unsuccessfully (900 trap nights) for this vole
on sage flats to the north of Camp Crook and west of the Little Missouri
River in the summer of 1970. "Sign," which appeared to be that of
_Lagurus_, was found in this area, but only _Peromyscus maniculatus_ and
_Spermophilus tridecemlineatus_ were trapped there.

~Rattus norvegicus~ (Berkenhout, 1769).--No records of this introduced
murid are available from northwestern South Dakota, but it seems likely
that the species has reached the area.

~Vulpes velox~ (Say, 1823).--Visher (1914:90) reported seeing a swift fox
"along the Little Missouri Valley in North Dakota" and further noted
that an early settler [Sol Catron] had "trapped a few" in Harding
County. Whatever the former status of this fox in northwestern South
Dakota may have been, the species evidently does not occur in the area
today, or is rare, and the subspecific status of _V. velox_ throughout
much of the Northern Great Plains is in question. A specimen obtained
in February of 1970 at a place 9 mi. N and 2 mi. E Scranton, Slope Co.,
North Dakota, is the only swift fox taken north of Nebraska in recent
years (Pfeifer and Hibbard, 1970:835).

~Urocyon cinereoargenteus ocythous~ Bangs, 1899.--Jones and Henderson
(1963:288) reported a gray fox from Deer Ear Buttes, Butte Co., South
Dakota, approximately 15 miles