32 VERTEBRATE ANIMALS, 
Oa 
and larger than the other teeth. The molars are mostly cutting 
teeth, furnished with sharp uneven edges, but one or more of 
the hinder teeth have tuberculate crowns. The molars, too, 
graduate from a cutting to a tuberculate form as the diet is 
strictly carnivorous or becomes more or less miscellaneous. 
The dental formula differs considerably in different members 
of the order, but subjoined is the dental formula of the Cats 
(Felide), which are the most typical examples of the Carnivora— 
— t=—1 — I—I] 
Z 33 ; ¢—— 5; pm 33 ; Ht —— = 30. 
3-3 I—I 2 . 
—2 I—I . 
Besides the strictly flesh-eating dentition of the Carzivora, 
the order is distinguished by always having the feet provided 
Fig. 180.—Feet of Carnivora (after Owen). A, Plantigrada, Foot of Bear ; 
Bb, Pinnigrada, Hind-feet of Seal; C, Digitigrada, Foot of Lion. 
with strong, curved claws, and the collar-bones (clavicles) are 
either quite rudimentary, or are altogether absent. The Car- 
mivora are divided into the following three sections, founded 
upon the nature of the limbs :— 
1. Pznnigrada (fig. 180, B), in which both the fore and hind 
legs are short, and the feet form broad, webbed, swimming- 
paddles. The hind-feet are placed very far back, nearly in a 
line with the axis of the body, and they form with the hinder 
end of the body a powerful caudal fin. In this section are the 
Seals and Walruses. 
