Distribution of Some Nebraskan MammalsJones, J. Knox
Science
Distribution of Some Nebraskan Mammals
Jones, J. Knox
Mammals -- Nebraska
=Blarina brevicauda carolinensis= (Bachman). SHORT-TAILED SHREW.--J. S.
Findley and I, in a forthcoming paper, review the distribution of
_Blarina brevicauda_ in the Great Plains region, recording _B. b.
carolinensis_ from the extreme southeastern and southwestern counties
of Nebraska. A series of five shrews of this species recently obtained
from three miles south and two miles east of Nebraska City in Otoe
County, average significantly smaller in both the cranial and the
external measurements than typical _B. b. brevicauda_ and fall well
within the range of _carolinensis_. Average and extreme external
measurements of the four adults from Otoe County, three males and one
female, are as follows: Total length, 110 (109-112); length of
tail-vertebrae, 24.2 (22-26); length of hind foot, 13.8 (13-14).
Another specimen from 3 mi. S, 1-1/2 mi. E of Peru, Nemaha County, also
is referable to _carolinensis_. These recent records indicate that the
range of _B. b. carolinensis_ extends up the Missouri River Valley,
approximately to Nebraska City, Otoe County. Five specimens from
Louisville, Cass County, the next county northward, along the River,
are referable to _B. b. brevicauda_.
=Eptesicus fuscus fuscus.= (Beauvois). BIG BROWN BAT.--One big brown
bat was obtained on July 23, 1952, from one mile west of Niobrara, Knox
County. While not so dark in dorsal coloration as some specimens of _E.
f. fuscus_ from eastern Nebraska (Cass and Sarpy counties), this
specimen is noticeably darker than a series of _E. f. pallidus_ from
Ft. Niobrara Wildlife Refuge, 4 mi. E of Valentine, Cherry County,
being near (16" _j_) Snuff Brown as opposed to near (16' _i_) Buckthorn
Brown. Previous to the taking of this specimen, Webb and Jones
(1952:277) reported as _E. f. pallidus_ a specimen, saved as a skull
only, which was picked up dead at Niobrara. It seems best to assign
these two bats from the vicinity of Niobrara, Knox County, to _E. f.
fuscus_.
=Sciurus carolinensis carolinensis= Gmelin. GRAY SQUIRREL.--An adult
male gray squirrel shot by Mr. Terry A. Vaughan in the heavily timbered
bluffs of the Missouri River, 3 mi. S, 2 mi. E of Nebraska City, Otoe
County, on October 10, 1953, provides the only museum specimen of a
gray squirrel from Nebraska known to me. Residents in the area
concerned report small numbers of this squirrel as still occurring on
the heavily wooded bluffs along the Missouri River in Nemaha, Otoe and
Richardson counties, Nebraska, at least as far north as Nebraska City.
Gray squirrels from Nebraska have been reported twice before in the
literature as follows: "Mouth of Platte [River]" (Baird, 1858:262) and
Barada, Richardson County (Jones and Webb, 1949:312). Swenk (1908:80),
while listing no actual records, says of this squirrel, "Common in the
timber along watercourses of southeastern Nebraska, but greatly
outnumbered everywhere by [_Sciurus niger_] _rufiventer_. I have no
records west of the 97th meridian nor north of the Platte."
Public-domain text, read in full here on John Shaqi.
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