﻿THE TRUE PHALANGERS. 87 



their margins and inner surface naked. Chin and under-parts 

 white or yellowish-white, sometimes passing into deep chestnut 

 at and near the root of the tail. Tail furry for about one -half 

 of its length superiorly, and for two-fifths below ; its terminal 

 portion with more fine hairs scattered over its upper and lateral 

 surfaces than usual, and with the contrast in colour between 

 the upper and under surfaces very strongly marked. 



Distriljution. — Celebes and Sanghir Islands, 



THE TRUE PHALANGERS. GENUS TRICHOSURUS. 



Trichosurus^ Lesson, Diet. Class. d'Hist. Nat., vol. xiii., p. 332 

 (1828). 



Size large ; form stout ; fur thick and woolly ; ears medium 

 or short. Fore toes sub-equal, their respective lengths in the 

 order 4, 3, 2, 5, i ; claws large and strong ; soles of hind feet 

 thickly haired beneath the heels, elsewhere naked, with low, 

 rounded, ill-defined pads. Tail strong, its terminal third or 

 half naked inferioriy, and its extreme tip completely bare. 



Side View of Upper and Lower Jaw of a species oi Phalanger. 



Chest with a gland. The molar teeth with four cusps which 

 tend to form two incomplete transverse ridges ; and the fourth 

 premolar large, obliquely placed, and vertically ridged (es- 

 pecially in the lower jaw), thus approximating very closely to 

 the corresponding tooth of Hypsiprym?iodon. 



