some new African Mammals, 371 
along mid-dorsum, peppered by the bright orange-buff sub- 
terminal bands of the hairs towards the flanks. On the lower 
flanks the dusky hair-tips become shorter and the bright 
buff colour more conspicuous. Under surface washed with 
pinkish buff. Ears dusky. Hands and feet dirty white. 
Tail, as in UJ. owent, rather finely scaled, 15 seales in a 
distance of 10 mm., instead of 12 to 13 scales in 10 mm., as 
in ruddi, foxi, and woodt. 
Skull normal, considerably smaller than that of woodi and 
lacking the peculiarities in form of the interorbital region 
seen in the latter species ; not essentially different from that 
of the W.-African oweni in form. Cheek-teeth very large, 
relatively larger than in any species previously described, 
their absolute size almost as great as in the much larger 
species U. woodi and considerably greater than in ruddt. 
The molar pattern of this genus has not been noted hitherto, 
because the teeth in most of the few specimens described have 
been too far worn to make out the cusps. But the two 
specimens upon which the present species is based and those 
from which Mr. Thomas described UJ. owent show that the 
molar structure in this genus is essentially as in Acomys. 
No measurements were taken in the flesh by the collector, but after 
relaxing the hind feet of the skins they were found to measure 16°5 mm. 
Skull-measurements of type (and of second specimen in parentheses) : 
condylo-basal length 25-9 (26) ; occipito-nasal length 23°6 (28-6) ; zygo- 
matic breadth 13°6 (13°8); interorbital constriction 4°9 (4°8); cranial 
width 11:1 (11°8); median occipital depth 7:5 (7:5); condyle to m.° 
11°5 (12:1); anterior palatal foramina 7°] (71) ; nasals 8°7 x 2°8 (8°8 x8) ; 
dental length 14:5 (14°4); cheek-teeth on crowns 4°8 (48). 
Type. An adult. B.M. no. 21. 2.17.1. Original number 
15791. Collected by Dr. Gericke at N’sana, N.W. Nyasa- 
land ; presented to the British Museum by the South African 
Museum, Cape Town. One other specimen (S.A. Museum 
no. 15792) obtained by Dr. Gericke at Kachenzi, N.W. 
Nyasaland, also examined. 
Hab. N.W. Nyasaland. 
This species differs widely from U. wovdi, the species 
inhabiting S. Nyasaland, and seems to be most nearly 
related to U. owent described from French Guinea. Its 
exceptionally dark colour and large cheek-teeth are its chief 
peculiarities. I am much indebted to Dr. Peringuey for 
permitting me to describe so interesting an animal. 
Before quitting the subject of Uranomys, I should like to 
add that independently I have come to much the same con- 
clusion as to the affinities of the genus as did Mr. Thomas *. 
* Ann. & Mag. Nat. Hist. (8) vi. p. 482 (1910). 
25 
