384 Mr. O. Thomas on 



Skull of the same high and rather narrow shape as in 

 M. calamorum ] upper outline rather less bowed. Brain-case 

 high, narrow, its anterior angles well marked. Palatal 

 foramina of medium length, narrow. Posterior palatal pits 

 well marked. Opening of posterior nares rounded. 



Teeth in essential structure as in M. calamorum, but rather 

 narrower. ]\P with four spaces and a terminal C, four inner 

 and three outer angles. Mi with six closed spaces and an 

 anterior trefoil, five inner and three outer angles. 



Dimensions of the type (measure! in flesh ) : — 



Head and body 150 mm.; tail 70; hind foot (s. u.) 23, 

 (c. u.) 25-5. 



Skull : upper length (tip of nasals to back of interparietal) 

 21) ; greatest breadth 18 ; nasals 9 x 4.'1 ; interorbital 

 breadth 4 ; breadth of brain-case 13"3 ; height from alveolus 

 of m^ 11 ; palatilar length 17 ; palatal foramina b'Q ; upper 

 molar series (crowns) 8'7. 



Hah. Ussuri River, E. Siberia. 



Type. Adult. B.M. no. 91. 6. 29. 2. Collected by Messrs. 

 Dorries on November 28, 1889. 



This fine vole is distinguished from M. calamorum by its 

 larger size and longer fur. No other described species seems 

 to be nearly related to it. 



XLVI. — Three new Mammals from Dutch Xeio Guinea. 

 By Oldfield Thomas. 



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



The collection of mammals obtained by the B.O.U. Expe- 

 dition to New Guinea contains several species new to the 

 Museum and the following three new to science. All were 

 collected in the low country near the coast, south of the 

 Charles Louis Range in Dutch New Guinea, and are pre- 

 sented to the National Museum by the Subscribers to the 

 Expedition. 



Evihalloniira fura X , sp. n. 



A very large species with greatly expanded muzzle. 



Size larger than in any described species. Fur long, close, 

 and straight; hairs of*^back rather over 7 mm. in length. 

 General colour above uniform rich brown (between vandyke- 

 brown and burnt umber), the hairs rather paler basally. 



