MAMMALS OK BORNEO. 6 I 



This porcupine is found both in the low country and on 

 the mountains to the height of 2000-ft. The Dyak name is 

 ' Landak Dudul." Kayan name, ' Kalong.' 



Hab. Mount Duht, (C. Hose). North Borneo (A. Everett). 



G EX US T \{ 10 H Y S. 



TRICHYS LIPURA. 



Tn'chvs lipiira, Giinther, Tliomas. Proc. Zool. Soc. Lond. 

 1889, p. 75. Tn'chvs gueui/ieri\ Thomas, P.Z.S. 1889, p. 235. 



All the upper and lateral parts of the body are densely 

 covered with flat flexible bristles of moderate length, grooved 

 on the upper as well as the lower surface. Underfur very 

 scantily represented by fine woolly hairs; and on the ruaip 

 some long hair-like bristles project beyond the flat ones. On 

 the head and abdomen the bristles are replaced by flat stiff 

 hairs. In the external form and structure of the head, ears, 

 and feet there is no marked difference from Atheriira. The 

 general tint of the upper parts of the animal is brown, each 

 spine being white at the base, and brown towards the point. 

 On the sides the brown colour gradually passes into the white 

 of the lower parts. Hairs of the long moustache black, the 

 longest hairs having whitish terminations. 



Total length of body without tail 



Distance from nose to ear 



Length of ear 



Length of sole of fore foot 



Length of sole of hind foot 



Length of one of the longest flat spines 



The tail of a full grown specimen of which the skin meas- 

 ured 15 inches without the tail, is 8^ inches, slender, longer 

 than one half of the body and head, covered with spines for 

 about one inch of its basal portion. Nearly in the whole of 

 its length it is covered with rhombic scales of relatively large 

 size, and arranged regularly in oblique series or rings. A short 

 fine hair, which is never spinous as in Athcrura juacrura, 

 starts from the base of each scale and lies closely adpressed 

 to its median line, giving to the scale the appearance of 

 being keeled (like the scale of a snake). Towards the end 

 of the tail the hairs become longer, and the terminal quills 

 are much elongated, 2-3 inches long, and compressed with a 

 shallow groove, like blades of grass, only much narrower, and 

 form a thin bundle. The majority are truncate at their ex- 

 tremity and hollow. These quills, therefore, differ much in 

 shape from those of ^Itlicrura, and are in fact a less developed 

 form of the caudal quills of other porcupines. This species is 



