J66 Mcrriam Descriptions of Nine New Mammals. 



upper incisors with a single median sulcus ; pelage coarse, but 

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

 a Geoini/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 pad. Oeomysfumosiis 

 seems to be more closely related to Geomys hispidue than to any 

 other known member of the genus, but it is smaller than hispidit,* ; 

 much darker in color; the sulcus in the upper incisor is median 

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

 interorbitally, and the angular processes of the mandible arc 

 conspicuously longer and project out laterally to a much greater 

 distance. 



Color. Upper parts dark sooty brown, the tips of the hairs 

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

 distinctly paler. 



Mr.' Nelson contributes the following information respecting 

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

 altitude of about 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 hills become more and more numerous until from about 800 

 to 2,500 feet they are common in places. 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, between which, in apparently 

 equally favorable ground, they occur singly and rarely. 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 up, and another in some 

 thick thorny woods on a dry bench bordering the Colima river 

 a few miles below the city. 



Geomys gymnurus sp. nov. 



Type No. lll\\ 9 ad. IT. S. National Museum (Department of Agricult- 

 ure collection). From Zapotlan, Jalisco, Mexico, April 1(>, 1892. (Y>1- 

 lertcfl by E. W. Nelson. (Original number, 24(50 ) 



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

 Total length, 842; tail vertebra 1 , W> ; hind foot, ;">(). 



