SUBCLASS and Order 2 Marsupials Pouched mammals without placenta; 

 eggs develop within the body of the mother, but young are born in a very 

 immature state, and continue to develop within a pouch on the mother's ab- 

 domen, where they attach themselves to her teats. Examples, kangaroos, 

 wombats, opossums, koalas, Tasmanian wolves, Tasmanian devils, wallabies, 

 bandicoots, pouched rats, pouched mice (see illustrations, pp. 426 and 549). 



SUBCLASS Placental mammals Conveniently classified according to the 

 hard tissues at the ends of the "fingers" and "toes." 



Order 3 Edentates ("toothless"). Clawed feet. Examples, sloths, 

 armadillos, hairy anteaters, scaly anteaters, aardvarks. 



Order 4 Chiroptera ("hand- wings"). Clawed feet. Example, bats. 



Order 5 Insectivores ("insect-eating"). Clawed feet. Examples, 

 flying lemurs, moles, shrews, hedgehogs. 



Order 6 Rodents ("gnawing"). Clawed feet. Examples, rats, mice, 

 hares, rabbits, pikas, squirrels, chipmunks, gophers, woodchucks, 

 prairie dogs, muskrats, beavers, capybaras, cavies, porcupines. 



Order 7 Carnivores ("flesh-eating"). Clawed feet. Several distinct 

 and widely distributed families (see illustrations, pp. 463 and 548). 



Dog family. Wolves, coyotes, foxes. 



Hyena family. 



Catfaynily. Lions, tigers, leopards, cheetahs, jaguars, ocelots, 



pumas, bobcats, domestic cats. 

 Moitgoose faynily. 



Bear family. Black bear, grizzly bear, polar bear. 

 Marten family. Otters, minks, weasels, ferrets, wolverines, skunks, 



badgers. 

 Raccoon family. Coatis, kinkajous, pandas (see illustration, p. 425). 

 Sea- lion family. Sea lions, fur seals. 

 Walrus family. 

 Seal family. Ringed seal, harbor seal, elephant seal. 



Order 8 Artiodactyls ("even-toed"). Hoofed feet. 



Suborder Suina ("pigs"). Examples, hippopotamus, swine, peccaries. 



Suborder Ruminants ("cud-chewers"). See illustration, p. 174. 



Camel family. Camels, llamas. 



Deer family. Moose, elk, caribou, antelopes, waterbucks, gazelles. 

 Girafe family . Giraffes, okapis. 



Oxen family. Gnus, goats, sheep, cattle, musk oxen, water 

 buffaloes, yaks, bison (see illustrations, pp. 7, 78, 588 and 651). 



Order 9 Perissodactyls ("odd-toed"). Hoofed feet. Examples, 

 horses, asses, zebras, tapirs, rhinoceroses. 



Order 10 Proboscidians ("with proboscis"). Hoofed feet. Example, 

 elephants. 



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