belonging to the Genus Crocidura. 377 



second and third upper unicuspids markedly smaller, third a 

 trifle larger than second ; shape of teeth as in jacksoni. 



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



Head and body 68 mm. ; tail 47 ; hind foot 12 ; ear 10. 



Skull : condylo-incisive length 20; greatest breadth 8'7 ; 

 least interorbital breadth 4 ; length of palate 8 ; postpalatal 

 length 9 ; greatest maxillary breadth 6 ; median depth of 

 brain-case 5*2 ; length of upper tooth-row 8*3. 



Hab. Araala River, Nyanza Province, British East Africa. 

 Altitude 5500 feet. 



Type. Adult male. B.M. no. 13. 10. 18. 24. Original 

 number 50. Collected on October 16th, 1912, by W. P. 

 Lowe, Esq. ; presented by G. P. Cosens, Esq. 



Mr. Lowe obtained a second specimen of this small shrew 

 at Lengototo, S.W. Nyanza Province ; it agrees very closely 

 with the type in general colour and the dental characters 

 noted above. 



The browner colour, absence of silver-grey mottling, more 

 distinctly bicoloured tail, and smaller unicuspids are the 

 chief characters that serve to distinguish this new form from 

 the Ravine species. 



(90) Crocidura jacksoni denti, subsp. n. 



About equal in size to jacksoni. 



Fur of medium length, hairs on back 3-4"5 mm. in 

 length. 



Colour (from spirit-specimen) dark brown above, slaty 

 grey below. Backs of hands and feet brownish. Tail dark 

 brown above, slightly paler on the ventral surface ; bristle- 

 hairs fairly numerous on basal two-thirds. 



Skull about equal in size to that of jacksoni, but with a 

 rather larger brain-case, the anterior corners of which are 

 very much more rounded. Small upper unicuspids more 

 equal in size, the third only slightly broader than the second. 



Dimensions of the type (in spirit) : — 



Head and body 63 mm. ; tail 46 ; hind foot 13 ; ear 8. 



Skull : condylo-incisive length 20 6 ; greatest breadth 9*3 ; 

 least interorbital breadth 4'5 ; length of palate 8*5 ; post- 

 palatal length 9'2; greatest maxillary breadth 6'6; median 

 depth of brain-case 5*1 ; length of upper tooth-row 9. 



Hab. Between Mawambi and Avakubi, Ituri Forest, 

 Congo. 



Type. Adult female. B.M. no. 7. 1. 2. 13. Collected 

 during the Ruwenzori Exploration by Mr. R. E. Dent. 



Ann. & Mag. N. Hist. tter. 8. Vol. xvi. 26 



