372 On some new African Mammals. 
Palate, structure of brain-case, temporal ridges, and molar 
forms prove that Uranomys is more closely allied to Acomys 
than to any other Murine genus. The crispness of the fur 
suggests the first stage towards the development of the spines 
so characteristic of the pelage of normal species of Acomys. 
But the marked straightening or pro-odonty of the incisors 
in Uranomys is a specialization in a direction unknown 
within the genus Acomys. The high mammary formula 
8—3=12, instead of 1—2=6 as in Acomys, is also a well- 
marked generic peculiarity. 
3. A NEW BLESMOL FROM ANGOLA. 
The large and valuable donation of Angolan mammals, 
which the Museum owes to the enterprise and generosity 
of Mr. Gilbert Blaine, includes a very interesting blesmol. 
This specimen, obtained in Central Angola by Mr. Blaine, 
represents a species hitherto unknown. While offering a 
general resemblance to Cryptomys mechow?, Peters, the new | 
animal differs from mechow? and from all other species yet 
described by its exceptionally large size. It may be called, 
in honour of its discoverer, 
Cryptomys blainet, sp. n. 
Like C. mechow? externally, but far larger. 
Size largest of the genus, the hind-foot measurement 
51 mm. instead of about 40, and the greatest skull-length 64 
instead of 58. 
Colour not distinguishable from that of C. mechowi (as 
represented by practically topotypical specimens from Duque 
de Braganca), much greyer and less yellow than in ansorge?. 
As in other species, there are two large patches of deeply 
discoloured fur—one on each side of the chin and throat 
below the mandible. 
Skull distinguished from those of all other species by its 
great size, and the unusually acute angle (with reference to 
the median, sagittal, vertical plane of the skull) at which the 
cheek-teeth are set in the maxilla. The interorbital region 
and posterior part of the nasals are badly injured in the type, 
but, so far as one can judge, the postorbital region resembles 
that of mechow?, lacking the curious inflation so characteristic 
of ansorget and melland?. ‘The muzzle is about intermediate 
in form between that of ansorget and that of mellandi; in 
ansorgei the diastema is equal in length to the distance 
between the condyle and the posterior cheek-tooth, in blaine 
and mechowi it is shorter, equal to a little less than the 
