32 ni<:scKiPTi\'K AccorxT of 



This tree shrew is more common in the low country than 

 on the mountains ; it is usually found in the dense forest, and 

 particularly active in its movements. 



Hab. Baram River (C. Hose). Mount Dulit, 2,000-ft. 

 (C. Hose). Batu Song Mount (C. Hose). Kidan River (type 

 of species) (C. Hose). 



TUPAIA MONTANA. 



Ttipaia numtana^ Thomas, P.Z.S. March, 1892, p. 223-224. 



Size much as in Malaccan specimens of Tapaia fcrniginea 

 (Bornean ones are rather larger), but the tail shorter in 

 proportion. General colour above, dusky olive, with a strong 

 rufous suffusion ; head clearer olive. Back, in fully adult 

 specimens, with a deep black median line running from the 

 withers to the rump, but broadening out, and becoming less 

 sharply defined in its posterior half. Under surface, greyish 

 orange, the hairs grey at their bases, broadly washed terminally 

 with rich olive yellow. Tail concolorous with the body, not 

 greyer, as it is so markedly in Tiipaia fcrrnginea ; grizzled 

 black and shining ferrugineous above ; below the central 

 short-haired part is grey ; then, laterally, there is a broad 

 band on each side of rich olive yellow, and the tips are grizzled 

 yellow and black. Skull and teeth apparently not definitely 

 distinguishable from those of Tapaia fcrniginea. Zygomatic 

 vacuity, large, widely open, about 5 by 2 millim. in the type. 



Dimensions. — Head and body (c), 200 millim ; tail (c), 

 140 (the cxti'cmc tip of the tail in the type is apparently 

 wanting ; the tail length in two other specimens is 127 and 153 

 respectively) ; hind foot, 41. Skull : basal length (c), 45-5 ; 

 greatest breadth, 27 ; anterior rim of orbit to nasal tip, 22"5 ; 

 interorbital breadth, 15 ; palate length, 27-8, breadth outside 

 m'^. i6-4, inside i"^. 97 ; diastema between j2^ and _c^ 4-5, 

 between _c_ and p^ ri ; front of ^L to back of m^ 27. 



Tapaia moutana is most nearly allied to Tapaia fcrraginca, 

 Raflf., and Tupaia picta, Thomas. It is distinguished from both 

 by the colour of its tail, the former having this member dull 

 annulated grey, and the latter brilliant rufous ; it has also a 

 shorter tail than either. From the former again it is separated 

 by developing in old age a median dorsal black line, and from 

 the latter, in which the line is present at all ages, by its less 

 sharp definition, and also the greater uniformity of the general 

 dorsal coloration. 



Hab. Mount Dulit 5000-ft. (Type of species) (C. Hose). 

 Mount Batu Song 3000-ft. (C. Hose). 



