CLASS MAMMALIA 643 



limbs modified for flight. Examples: Plcropus, flying 

 fox; Desmodus, blood-sucking vampire; Myotis, brown 

 bats (Fig. 517). 



Order 4. Carnivora (FER.E) FLESH-EATING MAMMALS. - 

 Clawed carnivorous mammals with large, projecting 

 canine teeth; incisors small; premolars adapted for 

 cutting flesh. 



Suborder i . FISSIPEDI A. CHIEFLY TERRESTRIAL CARNI- 

 VORES. Chiefly terrestrial carnivores with separated 

 digits. Examples: Canis, dog, fox, etc.; Procyon, 

 raccoon (Fig. 519); Mephitis, skunk (Fig. 520); Hyana, 

 hyaena; Felis, cat, lion, etc. 



Suborder 2. PINNIPEDIA. SEALS AND WALRUSES. - 

 Aquatic carnivores with digits united by a membrane. 

 Examples: Zalophus, California sea lion; Callotaria, fur 

 seal; Phoca, harbor seal; Odobcenus, walrus (Fig. 521). 



Order 5. Rodentia (GLIRES). -- RODENTS OR GNAWING 



ANIMALS. 



Suborder i. DUPLICIDENTATA. -- HARES AND Pi CAS. - 

 Rodents with two pairs of incisors in the upper jaw. 

 Examples: Lagomys, pica; Lepus, cottontail. 

 Suborder 2. SIMPLICIDENTATA. - - RODENTS PROPER. - 

 Rodents with one pair of incisors in the upper jaw. 

 Examples: Sciurus, squirrel; Castor, beaver; Geomys, 

 pocket gopher (Fig. 523); Mus, mice, rats; Erethizon, 

 Canada porcupine; Cavia, guinea pig. 



Order 6. Edentata. AMERICAN EDENTATES. Clawed 

 EUTHERIA without enamel on the teeth; teeth absent 

 from anterior part of jaw. Examples- Myrmecophaga, 

 great ant-eater (Fig. 525); Bradypus, three-toed sloth; 

 Tatusia, nine-banded armadillo (Fig. 526). 



Order 7. Pholidota. SCALY ANT-EATERS. Clawed EU- 

 THERIA with a covering of large, overlapping, horny 

 scales; teeth absent; tongue long and protractile. 

 Example: Manis, pangolin (Fig. 527). 



