laterally with narrow light stripe down inner side of fore legs. This light area is sometimes divided by a dark median line joining collar with buff of belly. Belly and chest buff, essentially like that of sides, with which it forms no contrast in color. As on the sides the buff is clouded by black hair tips, but the hairs are scarcely if at all gray at base. On chest the dark hair tips tend to form a median stripe, which is sometimes sharply defined and continuous with the ochraceous line occasionally dividing white of breast. A clear whitish area slightly larger and better defined than that of breast occupies region between hind legs. It is continuous with white stripe down inner side of hind legs. This stripe is usually divided on thigh by encroachment of the surrounding ochraceous. Tail silky white below and at tip, essentially like back above. _Skull._--The skull of _Tragulus bunguranensis_ fully equals that of _T. canescens_ in size, and distinctly exceeds that of the Bornean form of _T. napu_. It is much larger than that of _T. nigricans_, which proves to be a medium sized species like _T. rufulus_. In general form the skull agrees so closely with that of _Tragulus canescens_ that it is only to be distinguished by its slightly greater relative breadth and smaller, less inflated audital bullæ. As compared with the skull of _Tragulus nigricans_,[7] that of _T. bunguranensis_ is much larger (distance from back of occiput to front of canine 103 instead of 92, zygomatic breadth 53 instead of 45), and the braincase is more conspicuously ridged for muscular attachment. That part of the braincase immediately above posterior root of zygoma is more conspicuously inflated. Otherwise I can detect no salient differences in the skulls of the two animals. _Teeth._--The teeth are uniformly larger than those of _Tragulus nigricans_, but in form they present no characters of importance. As compared with _T. canescens_ the premolars both above and below are conspicuously more robust, a character in which the Bunguran animal agrees with the Bornean form of _Tragulus napu_. _Measurements._--External measurements of type: total length 647; head and body 571; tail vertebræ 76; hind foot 146; hind foot without hoofs 128. Average and extremes of five adults from the type locality: total length 643 (628-673); head and body 566 (558-584); tail vertebræ 77 (70-89); hind foot 142 (140-146); hind foot without hoofs 126 (124-128). Cranial measurements of type: greatest length 114; basal length 107; basilar length 100; occipito-nasal length 106; length of nasals 32; diastema 13 (9);[8] zygomatic breadth 52 (46); least interorbital breadth 33 (28); greatest breadth of braincase above base of zygomata 38 (33); mandible 91 (78); maxillary toothrow (alveoli) 38 (34); mandibular toothrow (alveoli) 44 (39); anterior upper premolar 7 × 3.8 (6.4 × 3); middle lower premolar 7.2 × 3 (5.8 × 2.4).