Mammals from Dutch Xcio Guinea. 207 



Head and body 45 ; car 18 x 10 ; third finger, metacarpal 

 32, first phalanx. 16 ; lower leg and foot 28*5. 



Skull: length to front of canines 17; zygomatic breadth 

 9 - l ; mastoid breadth 7 # 8 ; front of canine to back of in 3 5'8. 



Dab. Northern Territory of S. Australia. Type from 

 Mary River. 



Type. Adult female. B.M. no. 97. 4. 12. 7. Collected by 

 Dr. Knut Dahl. Received in exchange from the Christiania 

 31u.se um. 



Stenomys klossii, sp. n. 



A mountain-rat allied to S. niobe. 



Externally quite similar to S. niobe, the colour and length 

 of fur quite as in that species. Feet in some specimens with 

 whitish digits, in others wholly brown. 



Skull longer than in niobe, with more inflated brain-case 

 and longer narrower muzzle. Interorbital region broader 

 than in niobe, its edges with rudimentary ridges, not quite 

 smooth. Anteorbital plate very narrow, decidedly narrower 

 than in the smaller skull of niobe, its front edge strongly 

 slanted. Palatal foramina lather longer, their hinder end 

 not so distant from the molars. 



Dimensions of the type (measured in flesh) : — 



Head and body 123 mm. ; tail 130 ; hind foot 27 ; 

 ear 18. 



Skull : greatest length 34*3 ; condylo-incisive length 31 ; 

 zygomatic breadth 15"8 ; nasals 12 6; interorbital breadth 6; 

 breadth of brain-case 14*6 ; palatilar length 15 ; palatal 

 foramina 5'2 ; upper molar series 5'6. 



Dab. Upper Utakwa River, southern slope of Charles 

 Louis Mountains, Dutch New Guinea. Type from 

 " Camp 9," alt. 5500'. Other specimens from " Camp 11," 

 8000'. Seven specimens. 



Type. Adult male. B.M. no. 13. 6. 18. 83. Original 

 number 91. Collected 1st February, 1913, by O. B. Kloss. 



I have named this interesting mountain-rat in honour of 

 Mr. O. B. Kloss, who had charge of the mammal-collecting 

 during the Utakwa Expedition. The species was the only 

 mammal obtained at the higher collecting-stations. 



Uromys. 



Of the large rats of the Uromys macropus group the 

 Utakwa Expedition obtained examples of two species, from 

 low country and 2500' respectively. 



