100 LLOYD’S NATURAL HISTORY. 
X. FORBES’'S PHALANGER. PSEUDOCHIRUS FORBESI. 
Pseudochirus forbesi, Thomas, Ann. Mag. Nat. Hist., ser. 5, 
vol. xix. p. 146 (1887) ; 7d. Cat. Marsup. Brit. Mus., p. 183 
(1888). 
Characters—May be distinguished from the last by the 
absence of a dark streak on the forehead, and the presence of 
a pale spot below the ear. 
Distribution.—South-eastern New Guinea. 
Writing of the type specimen, its describer observes :— 
“This very handsome species, the smallest of the genus, is the 
only one that has yet been discovered anywhere in New Guinea, 
except in the north-west. While agreeing very closely with 
P. canescens in many of its characters, and forming, with that 
species and P. schlegeli, a very well-defined section of the 
genus, it yet differs remarkably from all in the total suppression 
of its posterior incisors and anterior premolars.” Other speci- 
mens are, however, urgently needed in order to determine 
whether these dental peculiarities are constant. 
THE TAGUAN PHALANGERS. GENUS PETAUROIDES. 
Petauroides, Thomas, Cat. Marsup. Brit. Mus., p. 163 (1888). 
Size large; fur very long, soft, and silky; ears very large, 
oval, naked inside, hairy externally ; flanks with a parachute- 
like expansion of skin. Claws very long, highly curved, and 
sharply pointed ; tail long, cylindrical, and evenly bushy, with 
the extreme tip prehensile and naked inferiorly. Skull and 
molar teeth as in Pseudochirus. 
Although very different in external appearance to the Ring- 
tailed Phalangers, the structure of the skull and teeth in the 
single representative of this genus clearly indicates that it must 
