182 THE TOWER MENAGERIE. 
and body, which are consequently maintained in a more 
upright and graceful position. The principal difference 
in their internal structure consists in the want of that 
extensive appendage to the first stomach, which renders 
the Camel. so peculiarly valuable in situations where 
water is with difficulty procured, by enabling him to 
lay in at once a sufficient stock of that indispensable 
necessary to supply his wants for many days. But even 
without this appendage the Llamas are observed to be 
by no means so much exposed to frequent thirst as the 
generality of animals, and to drink but rarely and in 
moderate quantity. 
The feet of the Camels and of the Llamas are very 
different in form from those of all the other Ruminants. 
They are, it is true, deeply divided, like those of the 
latter, into two apparent toes; but cannot be said, like 
them, to part the hoof, for they have no real hoof, and 
the extremities of their protruded toes are armed only 
with short, thick, and crooked claws. These toes are in 
the Camels united posteriorly by a horny process, which 
is wanting in the Llamas. 'The teeth of koth are nearly 
similar: they consist of six incisors in the lower jaw and 
two in the upper; of two canines in each; and of six 
molars in the upper, and five in the lower, on each side. 
None of the other Ruminants exhibit the least appear- 
ance of cutting teeth in the upper jaw. The nostrils of 
both consist externally of mere fissures in the skin, which 
may be opened and closed at pleasure, and which are 
surrounded by a naked muzzle; and their upper lip is 
divided into two distinct portions, which are very exten- 
sible, and capable of much separate motion. 
The species of the group, of which the Llama forms 
