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Records of Harvest Mice, Reithrodontomys, from Central America, with Description of a New Subspecies from Nicaragua   By: (1929-1992)

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UNIVERSITY OF KANSAS PUBLICATIONS MUSEUM OF NATURAL HISTORY

Volume 9, No. 19, pp. 519 529 January 14, 1960

Records of Harvest Mice, Reithrodontomys, from Central America, with Description of a New Subspecies from Nicaragua

BY

SYDNEY ANDERSON AND J. KNOX JONES, JR.

UNIVERSITY OF KANSAS LAWRENCE 1960

UNIVERSITY OF KANSAS PUBLICATIONS, MUSEUM OF NATURAL HISTORY

Editors: E. Raymond Hall, Chairman, Henry S. Fitch, Robert W. Wilson

Volume 9, No. 19, pp. 519 529 Published January 14, 1960

UNIVERSITY OF KANSAS Lawrence, Kansas

PRINTED IN THE STATE PRINTING PLANT TOPEKA, KANSAS 1960

28 1279

Records of Harvest Mice, Reithrodontomys, from Central America, with Description of a New Subspecies from Nicaragua

BY

SYDNEY ANDERSON AND J. KNOX JONES, JR.

Since 1952 when Hooper's review of Latin American harvest mice was published, collectors from the Museum of Natural History of the University of Kansas have visited several countries in Central America, and have obtained many additional specimens. Among these we find a new subspecies of Reithrodontomys fulvescens from Nicaragua, significant extensions of known geographic range for several other species, and additional information on variation in some little known kinds. Specimens in the Museum of Natural History of Reithrodontomys mexicanus cherriei , Reithrodontomys tenuirostris , and Reithrodontomys creper that are from within the geographic and altitudinal ranges listed by Hooper (1952) are not included in this report.

All place names are on the map of Hispanic America published by the American Geographical Society and can be located by consulting the "Index to map of Hispanic America" (Vol. 1, Geographical names in Central America, U. S. Government Printing Office, Washington, D. C., 1943.) All measurements cited are in millimeters.

Support for field work was provided by the Kansas University Endowment Association. Support for the laboratory phases of the work came in part from a grant from the National Science Foundation. Most of the specimens herein reported were collected by James W. Bee in late 1954 and early 1955, and by J. R. Alcorn and A. A. Alcorn in 1955 and 1956. A few that were collected earlier by other persons are mentioned. We are indebted to the following individuals for the loan of specimens in their care: R. G. Van Gelder, American Museum of Natural History; Philip Hershkovitz, Chicago Natural History Museum; W. H. Burt and E. T. Hooper, Museum of Zoology, University of Michigan; and D. H. Johnson and C. O. Handley, Jr., U. S. National Museum.

~ Reithrodontomys sumichrasti australis ~ J. A. Allen. Seven specimens from the vicinity of Volcan Irazú, Cartago, Costa Rica, are from within the geographic and altitudinal range recorded for the subspecies by Hooper (1952:82).

One female, KU 26967, trapped on March 2, 1947, on the SW slope of Volcan Irazú, 8500 ft., contained five embryos that were 17 mm. in crown rump length.

~ Reithrodontomys sumichrasti dorsalis ~ Merriam. A total of 93 females are among 195 specimens from 24 localities in Guatemala that lie within the geographic and altitudinal range recorded by Hooper (1952:78) for dorsalis .

Two females were pregnant; KU 71363, taken on January 28, 1956, 7 mi. E, 2 mi. S La Unión, Quetzaltenango, Guatemala, contained three embryos that were 7 mm. in crown rump length, and KU 65245, taken on December 15, 1954, 1 mi. NE Nebaj, 6000 ft., El Quiche, Guatemala, contained four embryos that were 15 mm. in crown rump length. These two females were the only pregnant ones among 36 taken in December, 23 in January, 1 in February, 19 in March, 5 in April, and 9 in August.

~ Reithrodontomys fulvescens chiapensis ~ Howell. GUATEMALA. Baja Verapaz: 1/2 mi. N, 1 mi. E Salamá, 3200 ft., 1 (KU 65378 January 28, 1955); 1 mi. S Rabinal, 3450 ft., 4 (KU 65379 82 January 29, 1955); 5 mi. N, 1 mi. W [Santa Cruz] El Chol, 6000 ft... Continue reading book >>




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