MAMMALIA 



401 



a 



B 



Fig. 207. — Group of Cetaeea. A, Killer Whale, Orca gladiator (after True); 

 B, Common Dolphin, Delphinus delphis (after Reinhardt); C, Sperm Whale, 

 Physeler macrocephalus; D, Southern Right Whale, Balcena australis. (C and D, 

 after Beddard.) 



