Nexo Mammals from JS'ew Guinea dec. 2G1 



to liavo an abruptly white tip. Palatine 



foramina not so short as in I'romys, their 



len;jrtli approximating to once and a half the 



distance from their hinder end to the molars. 



Mesopterypoid fossa broad anteriorly ; back 



of jiaiate about at level of m^. Incisors nor- 

 mal, not specially deep in proportion to their 



breadth, the depth of the lower ones not 



equalling the combined breadth of the pair. 



I'alate-ridges, where known, consisting of 



about 5 or 6 interdental ridges in addition to 



the simple predental ones * II. Mehviys. 



Genotype: M. rufescens\ (Uromys rufescens, Alst.). 

 Kange : Melanesia in a broad sense — from the Talaut Islands 

 and Moluccas through New Guinea to the Solomon Islands, 

 and southwards to North Australia. 

 Species described : csi'osus, arciujn, brnijnii, calidor, caurmus, 

 cervinipes, fraterculus, fulyens, gracilis, leiicoyaster, levipes, 

 lorentzi, hitillus, melictis, mollis, inoncktoni, muriniis, imtsa- 

 vora, 7nusc(ilis, tiaso, obiensu^, platyops, porculns, rufescens, 

 stidkeriy talaudium. 



13. Skull with zygomatic plate scarcely projecting. 

 IJuUo) comparatively large, inflated. Meso- 

 pterygoid fossa narrowed anteriorly to a point, 

 which is level with the hinder edge of m^. 

 a. Size of the single species rather large. Tail 

 medium, wholly black. Palatine foramina 

 about as in Melomys. Incisors broad and 

 stout, the lower ones not deep in proportion 

 to their width. ' Palate-ridges not known . . III. Solomys. 

 Genotype and sole species : S. sapie/itis ( Uromys sapientis, Thos.). 

 Range : Solomon Islands only. 



XXX. — New Mammals from J^ew Guinea and neighbouring 

 Islands. By Oldfield Thomas, 



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



By tlie kindness of Dr. W. K. Dammerman of Buitenzorg I 

 liave been entrusted with the examination of the considerable 

 nnmber of Papuan mammals in the Museum under his care, 

 the majority of them coming from recent expeditions to New 

 Guinea, notably that of 1920 to the Mamberano-Idenburg 

 region o£ N. New Guinea, carried out by Mr. W. C. 

 van Heurn. 



* As figured by Jentink, tab. cit. fig. 3. 



1" Chosen because I happen to be able to check the number of palate- 

 ridges ill one of the typical specimens. 



