188 Mr. G. Uollman on the African Shreios 



XVII. — On the African Shrews belonging to the Genus 

 Crocidura. — VII. By Guy Dollman. 



[Concluded from vol. xvi. p. 514.] 



Group 19 (bicolor). 



Size very small. Colour above greyish, greyish brovpii, or cinnamon ; 

 below silvery grey or whitish. Skulls rather flattened. Fur very 

 short. Second and third upper unicuspids about equal in size. 



(104) Crocidura bicolor, Boc. 

 Crocidura bicolor, Bocage, Jorn. Sc. Lisb. p. 29 (1889). 



A small, short-haii'ed, greyish-brown species, with silvery- 

 grey uiidcrparts and a rather flat skull. 



General dimensions a trifle less than in allex. Fur, as in 

 all the members of this group, very short; hairs of back 

 only about 2-3 mm. in length. 



Colour above greyish brown (between " hair-brown ^^ and 

 " fuscous " speckled with pale greyish buff), greyer than in 

 allea^ or alpina. Flanks a trifle paler, the colour passing 

 fairly abruptly into the silvery greyish white of the ventral 

 surface, the underparts being lighter than in any of the 

 preceding small species. Backs of hands and feet white. 

 Tail finely haired, distinctly bicoloured, dark brown above, 

 white below ; bristle-hairs numerous, greyish in colour. 



Skull small, equal in size to that of b. cuninghamei ; brain- 

 case flatter than in alpina. Teeth small, especially the 

 second and third upper unicuspids, which are about equal in 

 size, the third slightly overlapping the second. 



Dimensions of the type (as given by Bocage) : — 



Head and body 53 mm. ; tail 42 ; hind foot 10 (s. u.). 



In the Museum Collection there is a series of specimens 

 of bicolor fi*om Cacouda; the following are the flesh- 

 dimensions of two of these individuals : — 



Skull-dimensions of tvro Caconda specimens : — 

 Condylo-incisive length 17"5,17'2; greatest breadth 7'8, 7*8; 

 least interorbital breadth 3*7^ 3*6 ; length of palate 6*9, 6*7 ; 



