8o The Mammals of Colorado 
Type locality. — Espanola, Santa Fe County, New Mexico (J_ 
A. Loring). 
Measurements. — (Merriam) : Total length, 9.6; tail vert., 2.9; 
hind foot, 1.25. 
Description. — (From a specimen taken at Antonito, Conejos Co., 
Colo., Aug. 30th): Above, chestnut brown, not golden as in aureus 
and much darker. (Specimens from Salida are mostly a dull fulvous 
above, with a grayish tinge.) Feet and under parts grayish, darker 
than aureus, and tinged with buffy. Tail buffy. More blackish 
about face than aureus. 
Distribution. — This subspecies is reported from New Mexico and 
Colorado. In Colorado it has been recorded from Antonito and 
from the Conejos River, both in Conejos County; the altitude of 
Antonito is a little over 8,000 feet; specimens from Salida are also 
considered by Dr. Merriam as being typical pervagus. 
Thomomys fulvus (Lat., tawney). Fulvous Pocket 
Gopher. 
Geomys fulvus Woodhouse, Proc. Acad. Nat. Sci. Phila., p. 201 
(1852). 
Type locality. — San Francisco Mountains, Arizona. 
Measurements. — Total length, 8.8; tail vert., 3.0; hind foot, 1.2. 
Description. — (From a specimen taken near Glenwood, N. M., 
Nov. I, 1906): Above dark fulvous, some black hairs showing; 
sides brighter; under parts bright clear fulvous; chin black; cheek 
pouches lined with white; tail dark fulvous; feet whitish gray. 
Skull of medium length, broad across zygomata, but rather 
narrow interorbitally ; malars only moderately flaring; brain case 
not markedly triangular. 
Distribution. — The Fulvous Pocket Gopher has been taken in 
Arizona, New Mexico, western Texas, Colorado, and Chihuahua, 
Mexico. In Colorado it is recorded from Fisher's Peak, Las Animas 
County, collected by A. H. Howell, and recorded by Cary. 
Thomomys clusius (Lat. clausus, shut). Plains Pocket 
Gopher. 1 
Thomomys clusms Coues, Proc. Acad. Nat. Sci. Phila., 1875, p. 
138- 
1 Thomomys clusius fuscus, Fuscous Pocket Gopher. There are 
some specimens of Thomomys from Nederland, Boulder County, in 
the Field Columbian Museum labelled fttscus. I have examined these 
and they seem to be identical with specimens of T. fossor from 
various other parts of Colorado. 
