African Bats and Shrews. 321 



ground. For Van Somercn's slirew shows cerfain analogies 

 with F. joHat/i, and I arfi^ued that if Crocidura could vary 

 so widely as to include goUath^ a similar variation should bti 

 allowed in Si/lvisore.r, lar^e as is the gap between soniereni 

 and the other species. I therefore now propose to create a 

 genus, to be called Scutisore.v, lor S. somereni, the chief 

 characters of which wouhi be the long thick fur, quite 

 different from the short velvety coat of Si/lvisorex, and the 

 great development of the cranial ridges, as compared with the 

 practically smooth unridged skull of Syhisorex. The struc- 

 ture of the pterygoid region is as in Crociduraj not as iu 

 Pi'cesorex. 



Sylvisorex ollula, sp. n. 



A large species, with narrow elongated skull. 



»Size larger than in any known species of Si/lvisorex, after 

 the removal of Scutisoi'ex somereni from the genus. Form 

 slender. Fur soft, velvety ; hairs of back about 5 mm. in 

 length. General C(d()ur above dark slaty grey, slightly 

 browner and darker than Ridgway's " mouse-grey.'" Under 

 surface rather paler, the belly inconspicuously tinged with 

 bistre. Ears unusually large, their veitical height trom tiie 

 outer base apj)earing much greater than in other species. 

 Hands and feet brownish white. Tail rather shorter than 

 the body without the head, slender, finely scaled, uniformly 

 dark grey. 



Skull in general shape like that of S. Junaris, but much 

 larger ; the brain-case high, narrow, not flattened, the muzzle 

 long and slender. A slight sagittal and well-marked Lunb- 

 doidal crests present, though the specimen is by no means old. 



Third unicuspid rather larger than second, fourth nearly 

 equal to second in height, and about two-thirds its area, not 

 crowded or out of line, a space between it and the larire 

 premolar. 



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



Head and body 100 nun. ; tail 57; hind foot 16 ; ear 12. 



Skull: condylo-incisive length 24*6; condylo-basal length 

 23"8 ; breadth across brain-case 11 ; front of V- to back of 

 m^ IIT. 



Hah. Bitye, Ja River, S.E. Cameroons. Alt. 2000'. 



Type. Adult male. B.M. no. 13. 2. 8. 5. Collected 6th 

 August, 1912, by Mr. G. L. Bates. 



This shrew is readily distinguishable from any other 

 Sylvisorex by its large size. The skull of the next largest 

 species, IS. lunar is, from Ruwenzori, is only 22 mm. in 

 condylo-basal length. 



Ann. d; Mag. JS\ Hist. Ser. 8. Vol. xi. 22 



