ir)() Merriam — Descrlpfioiis of Nhic New Mammals. 



iijjpev iiici.sors with a single median sulcus : pelage coarse, l)ut 

 not nearly so harsh as in G. Jiispidiis ; fore claws rather weak for 

 a Ge()in;i'< ; tail appearing naked, but sparsely sprinkled with a 

 few inconspicuous hairs; hind feet nearly naked; belly scant 

 haired, the skin showing through ; no nasal i:»ad. Genmi/sfamo.'^iift 

 seems to l)e more closely related to Genniys hispidns than to any 

 other known member of the genus, but it is smaller than hiqtidn.s ; 

 much darker in color ; the sulcus in the U})})er incisor is median 

 instead of lateral ; the cranium is much narrower and less tlat 

 interorbitally, and the angular processes of tlie mandiltle are 

 conspicuously longer and [n-qject out laterally to a much greater 

 distance. 



Golor. — Upi)er parts dark sooty brown, the ti[)s of the hairs 

 faintly washed in places with reddish brown ; under parts in- 

 distinctly paler. 



Mv. Nelson contributes the following information respecting 

 the haunts of this species: In the vicinity of Armeria, at an 

 altitude of al)out 200 feet above the sea, a few pocket gopher's 

 hills were found, but none of the animals were taken. From 

 there up the course of the Armeria river on the plain of Colima 

 the liills become more and more numerous until from about 8()() 

 to 2,500 feet they are common in place.^. In a flat overgrown 

 with wild fig, mesquit, and cocoanut palm trees near Colima 

 City I secured eleven of these animals. They seem to live in 

 isolated and limited colonies, lietween which, in a})parently 

 equally favorable ground, they occur singly and rarel3^ One 

 colony of considerable size occupies an open grassy area in the 

 limestone belt between Colima and the volcano. Others were 

 seen along the sandy border of the Armeria river bottom, where 

 a growth of low bushes had started U]i, and another in some 

 thick tlioi'ny woods on a dry bench Ixjrdcring the Colima river 

 a few miles below tlie citv. 



Geomys gymnurus s)i. iiov. 



Type No. UUl $ ad. U.S. National Museum (J h'liartincnt of AuTicnlt- 

 uiv collection). From Zapotlan, .lalisco, Mexico, April lii, lS!t-_'. Col- 

 lected by E- W. Nelson. (Original number, 24(10 ) 



Measurements (in millimeters, taken in H(^•<h l>y collector). — 

 Total length, 842; tail vertebra", *.»;5 : hind foot. .",(). 



