RODENTJA— GEOMYIILE— GEOMYS CASTANOPS. 



! 1 ! 



admixture of lighter color; while the sides show a decided fulvous stripe. 

 But these specimens exhibit the fore leg- colored quite to the wrist, and we 

 are inclined to attribute the dark color to their immaturity. . For the pres- 

 ent, then, we provisionally assign them to P. monticola with a mark of doubt. 

 The species is one with which we are still imperfectly acquainted, as may be 

 seen on reference to Dr. Coues's memoir on the subject above cited. 







Specimens. 







No. 



Name. 



Locality. 



Date. 



Collector. 



Remarks. 



i6 3 



? Perognathus monticola. 

 do 



Otter Creek, Utah . . 

 do 



Sept. 14, 1S72 

 . do 



H. W. Henshaw.. 

 do 



Skin. 

 Do. 













Fam. geomyidae. 



Genus GEOMYS, Raf. 



GEOMYS CASTANOPS, (Bd.) LeC. 



Chestraut-iaccd Gopher. 



Tseudostoma castanops, Bd., Stansbury's Rep. Expl. Great Salt Lake, 1852, 313. — Add. 



& Bach., Q. N. A., iii, 1S54, 304. 

 Geomys castanops, LeC, Proc Acad. Nat. Sci. Phila., 1852, 1G3.— Bd., M. N. A., 1S57, 



384; P. It. R. Rep., x, 1859, Gunnison's & Beckwith's Route, mamin., 8, pi. 



10, f. 2. — Cotjes, Powell's Expl. Colorado R., 1875, 233 (monographic). 

 Geomys clarlcii, Baiiid, Proc. Acad. Nat. Sci. Phila., 1855, 232; M. N. A., 1S57, 3S3, pi. 



50, f. 1 a-g; U. S. Mex. B. Surv.. ii, pt. ii, 1859, p. — .— Kennerly, P. R. 



R. Rep., x, 1859, Whipple's Route, mamm., 13. 



The original specimen of this species was taken near Bent's Fort, New 

 Mexico. Dr. Cones has lately shown that the supposed (1. clarlcii is the 

 same species. 



Genus THOMOMYS, Maxim. 



TIIOMOMYS TALPOIDES UMBRINUS, (Rich.) Coues. 



BlJicJi-facecl Gopher. 



Geomys umbrinus, Ricn., F. B. A., i, 1S29, 202 ; Rep. Brit. Assoc., v, 1S3G (1837), 157.— 

 Wateiui., Charlesw. Mag., iii, 1839, 590, f. 71.— DeKay, N. Y. Fn., 1842, 

 92.— Sciiinz, Syn. Mamm., ii, 1845, 137.— LeConte, Proc. Acad. Nat. Sci. 

 Phila., 1852, 102. 



Ascomys umbrinus, Wagn., Suppl. Schreb., iv, 1843, 3S9. 



