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قراءة كتاب Taxonomic Status of Some Mice of The Peromyscus boylii Group in Eastern Mexico, With Description of a New Subspecies
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Taxonomic Status of Some Mice of The Peromyscus boylii Group in Eastern Mexico, With Description of a New Subspecies
University of Kansas Publications
Museum of Natural History
Volume 14, No. 7, pp. 111-120, 1 fig.
December 29, 1961
Taxonomic Status of Some Mice of The
Peromyscus boylii Group in Eastern Mexico,
With Description of a New Subspecies
BY
TICUL ALVAREZ
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. 7, pp. 111-120, 1 fig.
Published December 29, 1961
University of Kansas
Lawrence, Kansas
PRINTED BY
JEAN M. NEIBARGER, STATE PRINTER
TOPEKA, KANSAS
1961
29-393
Taxonomic Status of Some Mice of The
Peromyscus boylii Group in Eastern Mexico,
With Description of a New Subspecies
BY
TICUL ALVAREZ
Saussure (1860) described Peromyscus aztecus from southern México. Osgood (1909) by comparison of one of Saussure's specimens with some from Mirador, Veracruz, concluded that aztecus was a subspecies of P. boylii. Dalquest (1953) incorrectly reported specimens of P. boylii from San Luis Potosí as P. b. aztecus. Merriam (1898) named Peromyscus levipes from Mt. Malinche, Tlaxcala. Thomas (1903) described from Orizaba, Veracruz, P. beatae, which Osgood (1909) mistakenly thought was indistinguishable from P. boylii levipes. Therefore, Osgood in 1909 in his revision of the genus Peromyscus reported only two subspecies of P. boylii from eastern México: P. b. levipes, and P. b. aztecus. Study of Osgood's and Thomas' material, along with recently collected specimens from the states of eastern México, leads me to conclude that P. aztecus and P. boylii are different species; that P. beatae is a valid subspecies different from P. b. levipes; and finally that specimens of P. boylii from Nuevo León and northwestern Tamaulipas pertain to an hitherto unnamed subspecies.
1860. H[esperomys]. aztecus Saussure, Revue et Mag. Zool., Paris, ser. 2, 12:105, type from southern México, probably from the vicinity of Mirador, Veracruz, according to Osgood (N. Amer. Fauna, 28:156-157, April 17, 1909).
1909. Peromyscus boylei aztecus, Osgood, N. Amer. Fauna, 28:156, April 17.
Geographic distribution.—Known only from Mirador and Jalapa in Veracruz, and Huachinango in Puebla.
Diagnosis.—Size medium for the genus (see measurements); tail about as long as head and body; dorsal coloration near Sayal Brown (capitalized color terms after Ridgway, 1912); sides reddish; underparts Light Buff; tail bicolored but not distinctly so; supraorbital border of skull angular, and bullae pointed anteriorly; anterior half of braincase nearly straight (not rounded) as viewed from above; upper molar series long (4.7-5.0); incisive foramina short in relation to length of skull.
Comparisons.—From Peromyscus boylii, P. aztecus differs as follows: Larger in most parts measured; maxillary tooth-row 4.7-5.0 instead of 4.0-4.6; color brighter on sides (reddish instead of ochraceous);