3S2 On new African Muridaj. 



^ruu[), ill fact (juite like Elgon specimens referred to T. ihe'iitus 

 excej)t that the ears are smaller. Head and anterior halt' of 

 body lined olive-o-rey, posterior half passing into dull tawny 

 ochraceous. Under surface sharply defined pure white, a 

 very narrow buffy edging along the posterior part of the line 

 of demarcation. Ears rather small, coloured like the head. 

 Hands and feet pale buffy. Tail as usual long, well-haired, 

 and slightly pencilled terminally, brown above and at the 

 end, inconspicuously lighter below proximally, where the hairs 

 are dull bufly except along the centre, where they form a 

 slightly darker median line. 



Skull rather longer than that of macmillani, but with even 

 smaller bullae. Anterior palatine foramina comparatively 

 short, not reaching back even to the level of the front of the 

 root of vi^. Teeth very small. ,^ 



Dimensions of the type (measured in the flesh) : — 



Head and body 108 mm.; tail 170 ; hind foot 23-5; ear 15. 



Skull : greatest length 29'3 ; condylo-incisive length 27 ; 

 zygomatic breadth 14"2 ; nasals 11 ; interorbital breadth -I'S ; 

 brain-case breadth 12"8 ; palatilar length 12 ; diastema 7*5 ; 

 palatal foramina 6'1 ; uj^per molar series 4*3. 



Hah. Gonyon, Bassa, Liberia. 



Type. Old male. Original number 36. Collected 29th 

 November, 1910, by R. H. Bunting. 



This Tliamnomys is readily distinguishable from other 

 members of the genus by its size, small teeth, small bullae, 

 and short palatal foiamina. It is the first of this group of 

 llianmomys to be discovered in West Africa, the previously 

 known species ranging from Abyssinia to the Cape. 



I have named it after Mr. R. H. Bunting, its captor, in 

 whose collection there are several interesting Liberian species 

 not previously possessed by the Museuni, such as ^'Mus^^ 

 trivirgatus, Temm., Epimys defua., Mill., Dasymys rujulus^ 

 Mill., and Malacomys edwardsi, Rochebr. 



TyPOMYS, gen. no v. 



External characters as in Ilybomys, except for the three- 

 striped instead of one-striped pattern of coloration. Mammas- 

 — 2 = 4, these varying in liyhomys from — 2 = 4 to 

 1—2 = 6. 



Skull less broad than in Uylomys. Brain-case smaller, 

 muzzle longer. Anterior zygoma- root with the upper bridge 

 over the foramen, the liiuder edge of the zygomatic plate, and 

 the front half of m^ all in one straight vertical line (in liy- 

 homys the bridge is decidedly anterior to the hinder edge of 



