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

Records of Harvest Mice, Reithrodontomys, from Central America, with Description of a New Subspecies from NicaraguaJones, J. Knox

Science

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

Name: Records of Harvest Mice, Reithrodontomys, from Central America, with Description of a New Subspecies from Nicaragua
Author: Jones, J. Knox

Jones, J. Knox

Mice

Average and extreme external and cranial measurements of the
     six adults are: total length, 183.6 (170-198); length of
     tail, 106.0 (95-113); length of hind foot, 18.0 (18); length
     of ear from notch, 14.0 (14); total length of skull, 22.21
     (21.4-22.8); zygomatic breadth, 11.20 (10.9-11.7); breadth
     of braincase, 10.90 (10.3-11.4); depth of skull, 8.36
     (8.0-9.0); length of rostrum, 7.60 (7.3-7.8); breadth of
     rostrum, 4.24 (4.0-4.6); interorbital constriction, 3.78
     (3.6-4.0); length of incisive foramen, 4.05 (3.8-4.3);
     length of upper molar tooth-row, 3.28 (3.1-3.4). Weight in
     grams of the adults averaged 14.3 (12-17).

~_Reithrodontomys gracilis gracilis_~ Allen and
Chapman.--GUATEMALA.--El Petén: Uaxactún, 1500 ft., 2 (KU
65384-85--April 3, 1955).

These specimens are the first of the subspecies to be recorded from
Guatemala. Uaxactún is near, but not within, the range of _R. g.
gracilis_ as mapped by Hooper (1952:131). The male, KU 65384, and
female, KU 65385, are adults with comparatively unworn molar teeth.
Respective external measurements are: total length, 178, 175; length of
tail, 106, 102; length of hind foot, 18.5, 19; length of ear from
notch, 14, 14.

~_Reithrodontomys gracilis harrisi_~ Goodwin.--NICARAGUA.--Estelí: 9
mi. NNW Estelí, 1 (KU 71342--July 15, 1956). Managua: 3 mi. SW Managua,
15 (KU 71345-59--February, May, June, 1956); 4 mi. W Managua, 2 (KU
71360-61--June 26, 28, 1956).

Comments on the series from 3 mi. SW Managua have appeared elsewhere
(Englert, 1959:153). The specimen from 9 mi. NNW Estelí contained four
embryos that measured 5 mm. in crown-rump length.

~_Reithrodontomys gracilis pacificus_~ Goodwin.--EL SALVADOR.--San
Salvador: 1 mi. NW San Salvador, 1 (KU 71396--July 29, 1956).

Public-domain text, read in full here on John Shaqi.

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

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