﻿THE RING-TAILED PHALANGERS, 93 



mation to the same structure in the corresponding teeth of 

 young Cuscuses. 



I. SOMBRE PHALANGER. PSEUDOCHIRUS LEMUROIDES. 



Phalangista lemur oides, CoUett, Proc. Zool. Soc, 1884, 



p. 385. 

 Pseudochirus {Hemibeltdeus) lemuroides^ Collett, Zool. Jahr- 



buch, vol. ii., p. 923 (1887). 



Pseudochirus lefnuroides^ Thomas, Cat. Marsup, Brit. Mus., 



p. 170 (1888). 



Characters. — Size rather large ; fur soft and woolly ; general 

 colour dark brownish-grey ; under-parts dirty yellowish-grey ; 

 ears of moderate length. Limbs dark brown, becoming black 

 terminally ; tail rather short, clothed with uniform thick black 

 fur, the naked inferior portion short. Length of head and body 

 about 15 inches; of tail 12 inches. 



This and the next four species constitute the first group of 

 the genus, in which the ears are of medium length, not ex- 

 cessively short, and longer than broad ; the tail being tipped 

 with white, except in the present species. 



Distribution. — Central Queensland, in the Herbert river dis- 

 trict. 



This species, which is known to the natives by the name of 

 "Yappi," is said to be fairly abundant in some portions of its 

 range, although it has but recently been made known to 

 science. 



II. HERBERT-RIVER PHALANGER. PSEUDOCHIRUS 

 HERBERTENSIS. 



Phalangista herbertensis^ Collett, Proc. Zool. Soc, 1884, p, 383. 

 Pseudochirus tnongaft, De Vis, Proc. Linn. Soc, New South 

 Wales, ser. 2, vol. i., p. 11 30 (1888). 



