94 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 45. 



narrowly between the shoulders, 2 to 3 mm. wide and widening over 

 the lower back and hips to 25 or 30 mm. ; head a fine grizzle of black 

 and raw sienna, the latter predominating on tlie sides, the blackish on 

 the crown; underparts an ill-defined grizzle of dark tawny ochraceous 

 and slate, the tawny ochraceous lighter and more yellowish anteriorly; 

 tail above, similar to adjacent parts of body, but grizzle coarser; tail, 

 below, with short appessed hairs, in median line, a fine grizzle of 

 blackish and ochraceous, the darker color predominating, the longer 

 hairs, tawny ochraceous for their basal third, and a coarse grizzled 

 mixture of this same color and dark brownish distally; feet and hands 

 dark brownish with a very slight admixture of the light color of the 

 adjoining parts of body; shoulder stripe practically obsolete. 



Skull and teeth. — The skull of Tupaia montana is of moderate size 

 slightly smaller than that of T. glis fcrruginea, with relatively much 

 Avider brain case and more spreading zygomata; the rostrum has a 

 more abrupt origin from rest of skull and is much compressed from 

 above downward, especially the basal portion just posterior to the 

 nasals. The first and second upper molars of T. montana are more 

 quadrate m outlme than they are in T. glisfemiginea and the hypo- 

 cone of m} is better developed. (Plate 9, fig. 2.) 



Subspecies. — There are two subspecies of Tupaia montana, the 

 typical form T. montana montana from Mount Dulit and a form from 

 Mount Kina Balu, described below as new. Aside from some slight 

 color and cranial differences the two forms are chiefly distinguished by 

 the presence in the Dulit specimens of a more or less well-defined 

 dorsal patch and its absence in the animal from Mount Kina Balu. 



Remarlcs. — Tupaia montana is a very distinct species and easily dis- 

 tinguished by external and cranial characters from other members of 

 the genus. It does not appear to have any close resemblance to other 

 members of the genus, except the later described Tupaia carimatse. 

 The presence or absence of a black patch on specimens does not appear 

 to be attributable to age, sex, or season. Most specimens from Mount 

 Dulit show it plainly, while on Kina Balu specimens it is but barely 

 indicated. 



TUPAIA MONTANA MONTANA Thomas. 



1892. Tupaia montana Thomas, Ann. Mag. Nat. Hist., ser. 6, vol. 9, p. 252, 



March, 1892. 

 1892. Tupaia montana, Thomas, Proc. Zool. Sec. London, p. 223, 1892. 



Type-locality. — Five thousand feet on Mount Dulit, Sarawak, 

 Borneo. 



Type-specimen. — In British Museum, Keg. No. 92.2.7.5, skin and 

 skull of adult male collected October 14, 1891, at 5,000 feet on Mount 

 Dulit, Borneo; skin in good condition; skull with part of occipital 

 region cut away. 



