o Xinv Neiv Mammals. 173 



Sorex oreopolus ;: sp. nov. 



Tvpe X>. : ; ;-];;f5 1 $ ad. r. S. Xational Museum (Etepartment of Agri- 

 culture collection). From the Sierra de Colima, Jalisco, Mexico (altitude, 

 10,000 feet), April 22, 1892. Collected by K. \V. Nelson. (Original 1111111- 

 l>er, 2517.) 



Measurements (in millimeters, taken in flesh by collector). 

 Total length, 106; tail vertebrae, 36; hairs, 11 ; hind foot, 13. 



General Characters. Size rather large ; tail short; ears short, 

 scarcely protruding beyond the fur. 



Color. Upper parts uniform sepia-brown, with a ' pepper-and- 

 salt ' appearance ; under parts uniform drab ; tail bicolor, con- 

 color with the upper and lower surfaces of the body, but darker 

 near the tip on the under side. 



Cranial and Deiital Characters. Skull smaller than that of S. 

 oreopolus, with rostral portion narrower and more compressed ; 

 first and second lateral unicuspiclate teeth subequal and largest ; 

 third and fourth subequal and about half as large as the first 

 and second ; fifth rather large, plainly visible to the unaided 

 eye from the outer side, and wholly in the tooth row ; consid- 

 erably longer antero-posteriorly than in S. saussurr/. 



Sorex saussureif sp. nov. 



Type No. |22gJ 9 ad. U. S. National Museum (Department of Agri- 

 culture collection). From the Sierra de Colima, Jalisco, Mexico ('altitude 

 8,000 feet), April 23, 1892. Collected by E. AV. Nelson. (Original num- 

 ber, 2538.) 



Measurements (in millimeters, taken in flesh by collector). 

 Total length, 115; tail vertebra?, 48; hind foot, 14. 



General Characters. Size about equalling that of Sores- oreopo- 

 InXj but with tail and ears considerably longer (tail about as 

 long as the body without the head ; ears protruding conspicu- 

 ously beyond the fur). 



Color. Upper parts sepia-brown, slightly darker posteriorly; 

 under parts drab-gray on the throat and breast, clouded with 



* 'o/oeoTTtfjlo?, mountain-haunting. 



t Named in honor of Professor Henri De Saussure, of Geneva, Switzer- 

 land, who described a number of new mammals from Mexico more than 

 thirty years ago. (Rev. et Mag. Zool., xii, ISfiO ; xiii, 1861 ; xv, 1863). 



