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قراءة كتاب Natural History of the Brush Mouse (Peromyscus boylii) in Kansas With Description of a New Subspecies
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Natural History of the Brush Mouse (Peromyscus boylii) in Kansas With Description of a New Subspecies
University of Kansas Publications
Museum of Natural History
Volume 14, No. 6, pp. 99-110, 1 fig.
December 29, 1961
Natural History of the Brush Mouse
(Peromyscus boylii) in Kansas
With Description of a New Subspecies
BY
CHARLES A. LONG
University of Kansas
Lawrence
1961
University of Kansas Publications, Museum of Natural History
Editors: E. Raymond Hall, Chairman, Henry S. Fitch,
Theodore H. Eaton, Jr.
Volume 14, No. 6, pp. 99-110, 1 fig.
Published December 29, 1961
University of Kansas
Lawrence, Kansas
PRINTED BY
JEAN M. NEIBARGER, STATE PRINTER
TOPEKA, KANSAS
1961
28-8518
Natural History of the Brush Mouse
(Peromyscus boylii) in Kansas
With Description of a New Subspecies
BY
CHARLES A. LONG
In order to determine the geographic distribution of the brush mouse in the state, 15 localities, chosen on the basis of suitable habitat, were investigated by means of snap-trapping in the winter and spring of 1959, spring of 1960, and winter and spring of 1961. Variation in specimens obtained by me and in other specimens in the Museum of Natural History, The University of Kansas, was analyzed. Captive mice from Cherokee County, Kansas, were observed almost daily from March 27, 1960, to June 1, 1961. Captive mice from Chautauqua and Cowley counties were studied briefly. Contents of 38 stomachs of brush mice were analyzed, and diet-preferences of the captive mice were studied. Data from live-trapping and from snap-trapping are combined and provide some knowledge of size and fluctuation of populations in the species.
Examination of the accumulated specimens and the captive mice reveals the occurrence in southern Kansas of an unnamed subspecies, which may be named and described as follows:
Type.—Male, adult, skin and skull; No. 81830, K. U.; from 4 mi. E Sedan, Chautauqua County, Kansas; obtained on December 30, 1959, by C. A. Long, original No. 456.
Range.—Known from 3 mi. W Cedar Vale, in Cowley County, Kansas, and from the type locality.
Diagnosis.—Size medium (see Table 1 beyond); underparts white; upper parts Ochraceous-Tawny laterally, becoming intermixed with black and approaching Mummy Brown dorsally (capitalized color terms after Ridgway, 1912); eye nonprotuberant; tail short but well-haired distally and usually less than half total length; nasals long; cranium large.
Comparisons.—From P. b. attwateri, the subspecies geographically nearest cansensis, the latter can be easily distinguished by the less protuberant eyes and relatively shorter tail (91 per cent of length of head and body; in topotypes of P. b. attwateri from Kerr County, Texas, 104 per cent; in specimens of P. b. attwateri from Cherokee County, Kansas, 103 per cent). P. b. cansensis is darker than P. b. attwateri and darker than P. b. rowleyi, the palest subspecies of brush mouse, which occurs to the westward. The skull and nasals (see Table 1) in adults of P. b. attwateri from Cherokee County average shorter than in cansensis.
Specimens examined.—Total, 26.