CLASS MAMMALIA 643 



limbs modified for flight. Examples : Pteropus, 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 1 . Fissipedia. — Chiefly Terrestrial Carni- 

 vores. — Chiefly terrestrial carnivores with separated 

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

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

 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 1. Duplicidentata. — Hares and Picas. — 

 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: Sciiirus, 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). 



