MAMMALIA 



401 



FIG. 207. Group of Cetacea. A, Killer Whale, Orca gladiator (after True); 

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

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

 after Beddard.) 



