384 
U. Ss. P. R. R. EXP. AND SURVEYS—ZOOLOGY—GENERAL REPORT. 
Detailed measurements. 
No. 6. No. 447. 
Inches Lines. Inches. | Lines. 
DRO UG i Gane se se Soca so =e ess Sees oo Ss a ee Lh | eres 
fe ee in Sta I | eee a ey [een 1 8 
TAGHOT Mane pies ee eee tects ee ae 6 6 >) jseeeeee 
Tail, from root to end of vertebra------------ 6 2 5 
portion covered with short hair --------- 2 Vn eee 
IDENT 4, NS ee ee Ne eae sss ee cese ae DO Ss a oes 24 
Arm ; forefoot to end of claws---.---------.-- 1 3} 1 3 
HORE ER Sassen e See Saeed ee ke a5 G \eeteaes oem 6 
hand, without claw ------ ------ eA bas Ohta pene seme 9} 
third finger, without claw 2---.~=2-.s2s]42-52--283 dP see Sees 3 
Second (Clawip= so = ae en ee ee ee Big es 4} 
its finger. ane ne alee Se - | So eee 2 
Leg ; hind foot from heel to end of claws------ if 3} 1 3 
longest claw -..-..------- Rei srt tees Rabe oe ct i Ps ee Sees 3 
List of specimens. 
: Measurements. 
=| 5 
= |3 ee le le les | ellrx 
g\s , : SIS(E(E\Sl2)al.l4lg 
SS Locality. When Whence and how = Nature of} | | % S = = WE | 3 |8 | -3 | Collected by— 
B ra collected. obtained. 3 |specimen.| 3 | z rs SS (Shapes ic B/S 
2) ¢ Z oh ei ela leieiebalelsee 
2\¢ a o|2\|2F\n\b| | e/B|S/s]a 
2|5 = 8/2/3/8\/s/s|s(/s/2\2|2 
5 |5 fo) Z(/B/e/alalalaAlAle lee 
re ace Saree hs ee ata lec oy ae a we | ai aa! 
6/1624 -| Maj. W. H. Emory |....| Skin ..../6.80/2.50).... 1,301.30 58) -29)1.93 1.27 +39) -23) J. H. Clark... 
o++. {1623 Pe possort G0..seeecee-[oeee] SKUM 00] 2..-]e0ce|ece|enee[ereefenee) ene |2-B0) eee] 44} .80]....dO., 00000 eens 
447 1581! Pecos river, Texas Lt. A. W. Whipple|....| Mounted |6.00)2.00)....)1.25)1.26) .50, .25).... .ae-[eeee cone Dr. C. B. Kennerly. 
1737|.... Capt. J. Pope...... 205) Skin ..../8.50/3.00/3.20]..../1.35| .56 .25 fos feusfacel BQ] cveas ee ences 
\ { 
GEOMYS CASTANOPS. 
Chestnut-faced Gopher. 
Pseudostoma castanops, Barry, in Rep. Stansbury’s Exped. G. 8. Lake, June, 1852, 313. (Bent’s Fort.) 
Avup. and Baca. N. Am. Quad. IIT, 1854, 304. 
Geomys castanops, Leconte, Pr. A. N. Sc. Phil. VI, Sept., 1852, 163. 
Sp. Cn.—Upper incisor with a single deep groove bisecting the surface, the portions on either side similar. 
Second claw extending as far as the fourth. 
shorter than the hinder. 
Cheek pouches small, 
the fore part of head and sides of neck yellowish chestnut, sharply defined. Pouches whitish. 
This species in general appearance resembles the G@. clarkii, from western Texas. 
Fore feet 
Color, pale brownish yellow; 
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- 
