381 
U. S. 1\ R. R. EXP. AND SURVEYS-ZOOLOGY-GENERAL REPORT. 
Detailed measurements. 
- 
No. 
6. 
No. 447. 
Inches 
Lines. 
Inches. 
Lines. 
Nose to eye______ 
1 
ear____ _ _ __ 
1 
8 
root of tail_...._ 
G 
G 
6 
Tail, from root to end of vertebras-- 
2 
6 
2 
5 
portion covered with short hair_ 
2 
2 
2 
Ears, width_ 
2 
Arm ; forefoot to end of claws_ 
1 
3* 
I 
3 
longest claw_ 
7 
6 
hand, without claw_ 
104 
third finger, without claw__ 
4 
3 
second claw_ 
5 
4J 
its finger_ 
2 
2 
Leg ; hind foot from heel to end of claws_ 
1 
3£ 
1 
3 
longest claw__ 
H 
3 
List of specimens. 
GEOMYS CASTANOPS. 
Chestnut-faced Gopher. 
Pseudostoma castanops, Baird, in Rep. Stansbury’s Exped. G. S. Lake, June, 1852, 313. (Bent’s Fort.) 
Aud. and Bach. N. Am. Quad. Ill, 1854,304. 
Geomys castanops, Leconte, Pr. A..N. Sc. Phil. VI, Sept., 1852,163. 
Sp. Cii.—U pper incisor with a single deep groove bisecting the surface, the portions on either side similar. Fore feet 
shorter than the hinder. Second claw extending as far as the fourth. Cheek pouches small. Color, pale brownish yellow; 
the fore part of head and sides of neck yellowish chestnut, sharply defined. Pouches whitish. 
This species in general appearance resembles the G. clarJcii, from western Texas. The upper 
incisors are furrowed exactly down the central line by a rather deep broad groove, rounded off 
at the sides as well as the bottom, separating portions, on either side, which are almost per- 
