ROLL CALL jj- 



SECTION c — UNGULATA — Hoofed mammals. 



Order 8 — Artiodactyla — Even-toed ungulates; hippopotamus, camel, deer, 

 moose, domestic cattle, giraflfe. 

 Characteristics; An even number of digits, axis of symmetry passing 

 between digits three and four. 

 Order 9 — Perissodactyla — Odd-toed ungulates, horse, zebra, tapir, rhinoceros. 

 Characteristics : An uneven number of digits, axis of symmetry passing 

 through digit three 

 Order 10 — Proboscidea — Elephants. 



Characteristics : Ungulates characterized by long, prehensile proboscis ; 

 incisors developed to form tusks ; broad molars. 

 Order 11 — Sirenia — Sea-cows, dugong, manatee. 



Characteristics: Aquatic ungulate-type Eutheria; fore limbs finlike ; hind 

 limbs absent ; tail with horizontal fin. 

 Order 12 — Hyracoidea — Hyrax and coneys. 



Characteristics : Small rodent-like mammals with reduced tail and short 

 ears ; four digits on fore limbs ; three digits on hind limbs. 

 section d — cetacea — Whales and dolphins. 



Characteristics : Aquatic mammals ; probably derived from the Ungui- 

 culata or Ungulata. 

 Order 13 — Odontoceti — Toothed whales, dolphin, porpoise, grampus. 



Characteristics : Cetacea with teeth (at least on lower jaw) ; no whale- 

 bone. 

 Order 14 — Mystacoceii — Whalebone whales, fin whale, right whale. 



Characteristics: Cetacea without teeth in adult; mouth provided witli 

 plates of whalebone. 



