198 Mr. G. DoUman on the African Shrews 



Hah. Egypt. 



This Egyptiau shrew is distinguished from nana by its 

 shorter fur, rather duller and greyer dorsal surface, and 

 much greyer underparts. The Sudan species, jmsha, is 

 separated from religiosa by its much smaller skull, brighter 

 colouring, and white ventral surface. The smaller size and 

 more slaty colour at once distinguish nanilla from this species. 



(116) Crocidura lusifania, sp. n. 



Allied to nana, larger in size and with larger skull and 

 teeth. 



Body and hind foot larger than in nana ; tail rather 

 longer. Fur very short, hairs of back about 2'5 mm. in 

 length. 



Colour (taken from spirit-specimens) of dorsal surface 

 rather darker than in glebula, dull greyish cinnamon-brown, 

 changing fairly abruptly on the flanks into the greyish 

 white of the underparts. Chin and throat, backs of hands 

 and feet, and lateral gland white. Tail long ; light brown 

 above, whitish below ; bristle-hairs numerous and long, 

 distributed over nearly the whole length of the tail, white in 

 colour. 



Skull of the same flattened shape as in nana, brain-case 

 broader, muzzle less slender. Teeth larger and heavier ; 

 third upper unicuspid rather broader than second, but not 

 markedly so. 



Dimensions of the type and topotype (spirit-speci- 

 mens) : — 



Head and body 53, 53 mm. ; tail 43, 42 ; hind foot 10*6_, 

 10-5 ; ear 8, 7. 



Skulls : condylo-incisive length 16*9, 17 ; greatest breadth 

 7'5, 7*4 ; least interorbital breadth 3'6, 3^2 ; length of 

 palate 7, 7 ; postpalatal length 7'8, 8; greatest maxillary 

 breadth 5*2, 5 ; median depth of brain-case 3*7, 3"6; length 

 of upper tooth-row 7*2, 7"4. 



Hab. Trarza Country, Mauritania. 



Type. Adult male. B.M. no. 13. 3. 7. 2. Collected by 

 M. Audan. 



The larger size distinguishes this species from all the 

 other members of the nana group. 



The Nigerian glebula would appear to be its nearest 

 relation ; it is probably also related to the Gambian 

 Cinderella, which species possesses a larger and less flattened 

 skull and more incrassated tail. 



