MAMMALS FROM NEW GUINEA 611 



mina to back of palate 9.2; length of upper molar series 6.1; 

 of m^ 3.1, m^ 2.2, m^ 1.0 ; of wz^ 3, m^ % m^ 0.9. 



Hah. British New Guinea — exact locality not known. 



This animal has a considerable resemblance to Uromys levipes, 

 so considerable that without close examination it was supposed 

 to be the same, and the specimen was made into a skin without 

 sufficient notes being taken of the characters of the soft parts. 

 The number of mammae and foot pads, and the proportions of 

 the digits were however noted when the type was still in the 

 alcoholic state. 



While, quite a few years ago, Hydromys was the only genus 

 of the subfamily known, no less than six are now contained in 

 it, the additional ones being Xeromys from Australia, Chrotoniys 

 and two others, whose descriptions are now in the press, from 

 the Philippines (Whitehead collection) , and the present one 

 from New Guinea. Dr. Loria is much to be congratulated on 

 the addition that this animal, externally so like an ordinary rat, 

 has made to our knowledge of the subfamily Hydromyinae. 



17. WIus terrae-reginae , Alst. 



2 1^ . Gerekauumu, February 189.3. 



These specimens represent Peters's Mus ringens, which appears 

 to be certainly synonymous with Alston's species. 



18. Mus praetor, Thos. 



2 Haven, 8 November 1893. 



Only previously known from Aola, Guadalcanar (Woodford) 

 and Kabahadai, New Britain (Brown). 



19. Mus gestri, sp. n. 



20 Kapa Kapa. 



Size in old age a little less than in Mus rattus. Fur thin, harsh 

 and straight, intermixed with flattened spines, which are not 

 however very stiff. General colour above grizzled buff, heavily 

 lined with black, clearer buff on the sides. Belly dirty buft', the 

 hairs slaty basally, yellowish buff terminally ; line of demarcation 

 on sides not sharply marked. Ears rather short, laid forward in 

 a spirit specimen they barely reach to the posterior canthus of 

 the eye ; evenly rounded , practically naked. Upper surface of 



