282 On Mammals from the Lower Amazons. 



also proves its distinctness from 31. madeirensis, Cabr., a 

 renaming of Wagner's Didelphys macrotarsus. 



The hairs of the sides of the neck of the type of M. collega 

 are stiffened and show evidence of some glandular modification. 



55. Marmosa lima', sp. n. 



V . 85. Ceard, (F. Lima). 



Allied to M. collega, but fur longer, colour greyer, and 

 teeth larger. 



Size rather less than in collega. Fur long, soft and woolly, 

 the hairs of the back about 11 mm. in length. General 

 colour above strong drabby grey, the back nearly " drab/' 

 ihe sides more buffy brown. Under surface deep soiled 

 buffy, the bases of all the hairs, except on chin and inguinal 

 region, slaty greyish, their tips ochraceous buffy ; cheeks and 

 interramia cinnamon-tawny, inguinal region cinnamon-buff. 

 Tail with quite an inch and a half furry, the hairs about 

 8 mm. in length ; rest of tail brown, with a few conspicuous 

 whitish marblings terminally. 



Skull very like that of M. collega, with similar but less 

 heavy supraorbital beads. Molars rather larger. 



Dimensions of the type : — 



Head and body 135 mm. ; tail 225 ; hind foot 25 ; 

 ear 27. 



Skull : greatest length 40 ; condylo-basal length 39*3 ; 

 zygomatic breadth 20 ; nasals 16" 7 X 1*5 ; interorbital breadth 

 5*8 ; breadth on supraorbital beads 6 ; palatal length 22*5 ; 

 breadth across outer corners of m 2 17*7 ; maxillary tooth-row 

 16'5, three anterior molariform teeth 7*2. 



Hab. Ceard. 



Type. Adult but not old male. B.M. no. 20. 7. 14. 41. 

 Original number 85. Lived for some months in the Para 

 Zoological Gardens, to which it was brought from Ceara by 

 Senhor F. Lima. Died 11th March, 1916. 



This is a very striking species owing to the strong buffy 

 coloration of the under surface, the long woolly fur, and the 

 considerable extent of the furry base of the tail, so that it 

 looks like a small member of the cinerea group. But in a 

 fully adult specimen, with permanent dentition, its narrow 

 sku'ri and parallel supraorbital beads show that it is really an 

 ally of the Tapajoz species just described. It is named after 

 its captor, Senhor F. Lima. 



