4 
Order VIII. CETACEA. Page 
{Suborder 1. Odontoceti : Toothed Whales and Dolphins 86 
2. Mystacoceti : Whalebone Whales 95 
Order IX. EDENTATA : Sloths, Anteaters, and Armadillos 100 
Subclass II. MARSUPIALIA. 
Order X. MARSUPIALIA : Pouched Mammals (Kangaroos, 
Opossums, &c.) 105 
Subclass III. MONOTREMATA. 
Order XI. MONOTREMATA: Duck-billed Platypus and Echidnas. 115 
