214 Mr. 0. Thomas on 



greyish as in andinus ; terminal half blackish ; hairs of 

 metentote wliitish, those along the edge tinged with pale 

 tawny. Nuchal patch large, as in true andinus, dull tawny. 

 Upper surface of hands and feet tawny whitish. 



Skull very flat in frontal region ; postorbital processes 

 slender, the notch behind them equally narrow throughout. 

 Palatal foramina widely open, tlieir edges rounded. Bulloa 

 much smaller than those of andinus, scarcely inflated, little 

 exceeding those of S. surdaster. Upper incisors more bent 

 downwards and inwards^ so as to be practically invisible from 

 above. 



Dimensions of the type (measured in flesh) : — 



Head and body 350 mm. ; tail 20; hind foot 75 ; ear 55. 



Skull : greatest length 68'3 ; condylo-incisive length 62 ; 

 zygomatic breadth 33*5 ; nasals 26x13*8; palatal foramina 

 17 X 7 ; breadth of palatal bridge 7 ; upper tooth-row 

 (alveoli) 13. 



Hah. Sau Pablo, Cajamarca, Pacific slope of N. Peru. 

 Alt. 2000 m. 



Type. Adult female. P.M. no. 0. 3. 15. 29. Original 

 number 718. Collected 8th November, 1899, by P. O. 

 Simons. 



In its paler colour, as compared with the saturate 

 S. andinus, this rabbit shows the influence of the dry 

 climate of the coast o£ N.W. Peru. It shows some relation- 

 ship to the members of the S. hrasiliensis group by its sides 

 being paler than the back, by its light superciliary streak, 

 and by the inclination to tawny on the bases of the ears. 

 Its skull is recognizable by its small bullse and the unusually 

 slight projection forward of the incisors. 



XIX. — Four new Shreivs. By Oldfield Thomas. 



(PuUished by permission of the Trustees of the British Museum.) 



Sorex hatis, sp. n. 



A large dark-coloured shrew, without tricolor pattern. 



Size about as in the larger races of S. araneus. General 

 colour dark, without any trace of the " tricolor pattern " so 

 characteristic of S. araneus; upper surface either blackish 

 slate or sepia-brown, some specimens of the series all of the 

 one colour, some of the otiier, and some half one and half the 



