FOUR NEW MAMMALS FROM VENEZUELA. 



BY WILFRED H. OSGOOD. 



Among South American mammals obtained in recent years by the 

 Field Museum of Natural History are four from western Venezuela 

 that appear to be undescribed. They are as follows: 



Peramys palliolatus sp. nov. 



Type from San Juan de Colon, State of Tachira, Venezuela. Al- 

 titude 2,500 ft. No. 20524 Field Museum of Natural History. Adult 

 male. Collected Nov. 14, 1913, by M. P. Anderson. Orig. No. 159. 



Characters. — Similar in general characters to Peramys brevicaudatus 

 but color of under parts entirely rich tawny; hairiness at base of tail 

 reduced to about a half -inch, that of the upper side only slightly exceed- 

 ing the lower; skull larger and teeth relatively small. 



Color. — Median upper parts from end of nose to rump with hairs 

 dull slaty at the base and tipped with yellowish gray, the whole forming 

 a broad grayish dorsal band; sides of face including a narrow line over 

 the eye, sides of body, arms and legs, and entire under parts deep rich 

 ferruginous; hands and feet dusky mixed with ferruginous; scaly part 

 of tail blackish above and below. 



Skull.- — Similar to that of P. hrevicatidatus but larger; nasals long 

 and broadly expanded posteriorly; naso-frontal suture emarginate; 

 rather marked postorbital swellings; molariform teeth slightly smaller 

 than in brevicaudatus. 



Measurements. — Type: Total length 197; head and body 116; tail 

 79; hind foot 21.5. Skull of type: Greatest length 36; basal length 36; 

 zygomatic breadth 19.8; greatest interorbital breadth 7.5; least inter- 

 orbital breadth 6.3; length of nasals 17; greatest width of nasals 5.8; 

 palate length from gnathion 20; front of canine to back of M* 14.4; 

 combined length of Ms^'^ 6.5. 



Remarks. — This species is not only darker in color than brevicaudatus 

 but the hairiness of the upper side of its tail is much less extensive. 

 It is evidently larger and darker than P. b. orinoci and P. b. dorsalis 



13s 



