144 Mr. G. Dollman on the African Shrews 



passing into the dull slate-grey of the ventral surface, which 

 varies in colour from " pale smoke-grey '' iu the new coat 

 to " light greyish olive " iu the worn phase ; hairs of belly 

 with slaty bases and greyish-white tips, the general effect 

 paler and greyer than in soricoides. Backs of hands and 

 feet brownish. Tail rather more coarsely haired than in 

 poensis or soricoides, dark brownish black above, rather paler 

 below; bristle-hairs greyish^ fairly numerous, and con- 

 spicuous. 



Skull about equal in size to that of soricoides, muzzle 

 rather blunter and brain-case more inflated, shaped more as 

 in the Gold Coast race of poensis, described above. Teeth 

 about equal in size to those of soricoides, third upper uni- 

 cuspid rather broader than second, and slightly over- 

 lapping it. 



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



Head and body 98 mm. ; tail 61 ; hind foot 16 ; ear 12. 



Skull : condylo-incisive length 24*8 ; greatest breadth 

 10"5 ; least interorbital breadth 4'8 ; length of palate 10'8 ; 

 postpalatal length 10*6 ; greatest maxillary breadth 7"6 ; 

 median depth of brain-case 6*2 ; length of upper tooth- 

 row 11. 



Hub. Panvam, Northern Nigeria. Altitude 4000 feet. 



Type. Adult male. B.M. no. 11. 3. 24. 7. Original 

 number 5. Collected and presented by the late Rev. G. T. 

 Fox. 



A second specimen, a female from the type-locality, 

 agrees very closely with the type in general colour and 

 dimensions. 



This shrew is easily distinguished from soricoides and the 

 other races oi poensis by its much paler and greyer colour. 



Group 10 {arethusa and erica). 



Size medium. Colour above cold grey -waslied with ciunamou or 

 brown. Second and third upper unicuspida about equal in size ; 

 last upper molar very small. 



(62) Crocidura arethusa, sp. n. 



Smaller than /oa^i and greyer in colour. 



Hind foot only 14 mm. in length. Fur rather short, 

 hairs of back 3-4 mm. long. 



Colour of dorsal surface pale cinnamon-brown mixed with 

 grey, about as in '^ mouse-grey '' speckled with " mummy- 

 brown ; flanks a trifle greyer, the brownish tint passing 

 abruptly into the greyish white of the ventral surface, the 

 demarcation much sharper than in foxi or any of the 



