FKOM THE PHILIPPINE ISLANDS. 407 



It is difficult to decide what are the exact relationships of Carpomys, and it can only 

 be said that it adds one more to the list of Oriental genera of Muridee modified for an 

 arboreal life, such as Hapalomys, Pithechirus, Chiropodomys, and Vandeleuria. 



This new genus contains two handsome Dormouse-like species with long hairy tails 

 and fluffy fur. Both are evidently of arboreal habits. 



With a certain superficial resemblance to each other, the two species of Carpomys 

 may be readily distinguished by their differently-coloured tails, the extension of the 

 body-fur on to that organ in C. melanurus, and by the very much larger teeth, both 

 absolutely and proportionally, of the same species. 



Carpomys melanurus Thos. (Flate XXXIV. fig. 2.) 



Carpomys melanurus Thos. Ann. Mag. N. H. (6) xvi. p. 162 (1895). 

 a-d. 3 ad. & 1 yg. sks., J ? . Monte Data, 7000-8000 feet, Feb. 1895. 



Size about as in Mus rattus. Fur soft, thick, and woolly. General colour deep 

 fulvous, coarsely lined with black. Under surface and inner sides of limbs dull 

 yellowish white, the bases of the hairs slate. Ears of medium size, well haired, dark 

 brown, nearly black. Limbs to wrists and ankles furred and coloured like body. 

 Metapodials brown mesially, laterally and on the digits white. Tail longer than head 

 and body, its basal inch or two thickly furry like the body, and of the same colour ; 

 the rest closely covered with shining black hairs, some 5 to 7 millim.in length, entirely 

 hiding the scales ; not specially tufted at tip. 



Skull (PL XXXVI. fig. 6) with the nasals broad in front, abruptly narrowing back- 

 ward. Interorbital region narrow, broader in front than behind, and the traces of ridges 

 mounting on to the top, and approaching each other to within 2 millim. in the middle 

 line. Palatal foramina parallel-sided, attaining at once their greatest width anteriorly. 

 Palate ending opposite the front edge of m. 3 . 



Teeth broad and heavy. Incisors broad, slightly flattened in front in old specimens ; 

 dark yellow above, rather more whitish below. Molars (PI. XXXVI. fig. 3) very 

 broad and large (see skull-measurements), their combined length exceeding that of the 

 palatal foramina. 



Dimensions of the type, an adult male, in skin : — 



Head and body 197 millim. ; tail 211 ; hind foot (moistened) 34-2. 



Skull, see p. 404. 



Type. P.M. 95. 8. 2. 12. 



" The black-tailed Carpomys differs much from the next species, C. phceurus, both 

 in size, colour, and length of fur ; in fact it has externally the appearance of Batomys. 

 On Monte Data, where both these new forms were obtained, it was more numerous 

 than either Batomys or the next species. 



" Distribution. Highlands of Central Northern Luzon." — J. W. 



