BY
ROLLIN H. BAKER
University of Kansas Publications
Museum of Natural History
Volume 5, No. 2, pp. 17-24
February 28, 1951
University of Kansas
LAWRENCE
1951
University of Kansas Publications, Museum of Natural History
Editors: E. Raymond Hall, Chairman, Edward H. Taylor,
A. Byron Leonard, Robert W. Wilson
Volume 5, No. 2, pp. 17-24
February 28, 1951
University of Kansas
Lawrence, Kansas
PRINTED BY
FERD VOILAND, JR., STATE PRINTER
TOPEKA, KANSAS
1951
23-6626
BY
ROLLIN H. BAKER
In the spring of 1950, a field party from the University of KansasMuseum of Natural History including J. R. Alcorn, W. J. Schaldach,Jr., George Newton, and the author collected mammals in theMexican state of Coahuila. A few days were spent in the Sierra delCarmen. One morning when examining sets for pocket gophers inthese mountains, Alcorn found a mole caught in one of the traps.Subsequent examination discloses that this specimen belongs to aheretofore unknown species which may be named and described asfollows:
Scalopus montanus new species
Type.—Male, adult, skin and skull plus body skeleton; no. 35668, Univ.Kansas Mus. Nat. Hist.; Club Sierra del Carmen, 2 mi. N and 6 mi. W PiedraBlanca, Coahuila, Mexico; 7 April 1950; obtained by J. R. Alcorn, original no.11093.
Range.—Known only from the type locality; probably found in other localitiesin the Sierra del Carmen of northern Coahuila, Mexico.
Diagnosis.—Size medium and slender for the genus (see measurements);tail medium in length, sparsely covered with whitish hairs; claws of forefeetslender; upper parts near (h) Buffy Brown (capitalized color terms afterRidgway, Color Standards and Color Nomenclature, Washington, D. C., 1912),with slight rufous wash on top of head; underparts resemble upper parts butslightly paler with longitudinal band of near (14) Sudan Brown extendingfrom chin posteriorly to and around base of tail, less intense on breast; skullsmall, arched, and relatively slender especially across mastoidal region; posteriorpart of cranium depressed; foramen magnum low when viewed from rear; externalpterygoid region not greatly expanded; teeth small, especially upper thirdmolar.
Comparison.—From Scalopus aquaticus, of which ten subspecies have beenseen including those of significant geographic position, S. montanus differs in:Skull slenderer, less angular and relatively narrower across mastoidal region;cranium arched with hind part flattened; external pterygoid region less expanded;teeth relatively small, especially last upper molar. From S. inflatus,known to me from Jackson's description (N. Amer. Fauna, 38:53-54, pls.2, 3, September 30, 1915), S. montanus differs in: Skull less angular andslenderer, prelachrymal region not inflated; zygomata slenderer.
Remarks.—S. montanus is known from a single specimen, whichrepresents the second known occurrence of the genus Scalopus in[Pg 20]Mexico. The other occurrence is that of S. inflatus in the state ofTamaulipas. S. mont BU KİTABI OKUMAK İÇİN ÜYE OLUN VEYA GİRİŞ YAPIN!
Sitemize Üyelik ÜCRETSİZDİR!