MARSUPIALIA. 133 
but no caninis in the upper, two long incisors in front, a few 
small ones on the sides, and two small canines. It compre- 
hends but one genus. 
Koata, Cuv.—Lirurus, Gold.—Puascotarcros, Blain. 
The Koale have a short, stout bodys; short legs, and no tail. The 
toes of their fore féet, five in number, when about to seize any object, 
separate into two groups; the thumb and index on one side, and the 
remaining three on the other. The thumb is wanting on the hind 
foot ; the two first toes of which are united like those of the Phalan- 
gers and the Kanguroos. One species only is known : 
K. cinerea; Lipurus cinereus, Gold.; Schreb. CLV, A, a. (The 
Koala.) Ash coloured ; passes one part of its life in trees, and 
the other in burrows it excavates at their foot. The mother 
carries her young one for a long time on her back. 
Finally, our sixth division of the Marsupialia, or the 
Puascotomys, Geoff.(1) 
Consists of animals which are true Rodentia in the teeth and intes- 
tines, their only relation to the Carnaria consisting in the articu- 
lation of their lower jaws; and in a rigorously exact system, it would 
be necessary to class them with the Rodentia. We should even 
have placed them there, had we not been led to them by a regular 
uninterrupted series from the Opossums to the Phalangers, from the 
latter to the Kanguroos, and from the Kanguroos to the Phascolo- 
mys ; and finally, were it not that the organs of generation are every 
way exactly similar to those of the Marsupialia. 
They are sluggish animals, with large, flat heads, and bodies that 
look as if they had been crushed. They are without a tail ; have five 
nails on each of the fore feet, and four, with a small tubercle, in 
place of a thumb, on each of the hind ones, all very long and fit for 
digging. Their gait is excessively slow. They have two long in- 
cisors in each jaw, almost similar to those of the Rodentia; and 
each of their grinders has two transverse ridges. 
They feed on grass; their stomach is pyriform, and their cecum 
short and wide, furnished like that of Man, and of the Ourang-Ou- 
tang, with a vermiform appendage. The penis is bifurcated, like that 
of the Opossums. One species only is known, the 
Phas. ursinus ; Didelphis ursina, Shaw; Peron. Voy. pl. xxxviii, 
(The Wombat.) Size of a Badger; fur abundant, of a more 
(1) Phascolomys, a pouched rat, from gacxaacy and us. 
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