262 MESSRS. O. THOMAS AND H. SCHWANN ON [^P^"- l^j 



crown, where it contrasts with the cheeks, which are yellowish 

 white. Under surface yellowish white, the hairs light to their 

 bases, line of demarcation on sides not defined. A slight greenish 

 iridescence on the dorsal hau-s. 



Skull small, in general outline more broadly triangular than in 

 A. hottentottus ; the breadth across the molai'S nearly equalling the 

 distance from the last molar to the tip of the first incisor. 



Second and thu'd upper incisors flattened and grooved ex- 

 ternally. Canines more or less premolaiiform in shape, tiiangular 

 in section. First premolar as elongated transversely as the first 

 molar, its anterior lobe rounded and little projecting. Other 

 premolars and molars with scarcely a trace of the usual antero- 

 external projections. Lower teeth all imusually high ; pre- 

 molai'S and anterior molars each with a small but distinct low 

 secondary cusp at the postero-internal angle — absolutely intei-nal, 

 not mesial as in other species. 



Dimensions of a specimen in spirit : — Head and body 93 mm. ; 

 hind foot (s.u.) 1 ; nose-pad 5-4x11. The type is rather younger 

 and smaller : head and body 82 mm. 



Skull (the larger specimen) — greatest length 22 ; basal length 

 in middle line 18 ; greatest breadth 15-6 ; greatest height 10-5 ; 

 interorbital bi-eadth 6-6 ; length of upper tooth -I'ow 9-2 ; greatest 

 breadth across premolars 8. 



Hah. Delagoa Bay. 



Tyj^e. Female. B.M. no. 84.8.30.2. Presented by Mrs. Mon- 

 teiro. Two specimens examined. 



This interesting little species has been hitherto confused with 

 A. obticsirostris, but differs by its smaller size and wdiitish fur. 

 Both species differ from A. hotfentoUus and its allies by the whole 

 of their upper premolars taking on a molariform shape, while the 

 canine even is pressed into the same sei'vice by having the shape 

 usually characteristic of an anterior premolar. 



As a result of this modification thei'e are (putting aside the 

 small m-) four large molariform teeth (p^'^ m^) as compared 

 with three (p"'^ m') in A. hottentottus and its allies. (See PI. XVI. 

 fig. 2 6.) 



13. Myosoeex sclateri Thos. &, Schw. 



S . 887, 888, 906, and one inspirit. $ . 886, 889, 190. iS^goye 

 Hills. 



Myosorex sclateri talpinus, subsp. n, 



S . 814, 819, 823, and one in spirit. $ . 818. Umvolosi. 



Myosorex sclateri affinis, subsp. n. 



S . 584, 641, 642. $ . 580, 594, 643, 645, 666._ Sibudeni. _ 

 A more detailed examination of the series on which this species 

 was founded convinces us of the necessity of distinguishing sub- 

 specifically the specimens from the three localities mentioned 

 above. 



