xir 



CONTENTS. 



Fourth Genus. — Narwhalus 



The Narwhal, or Sea Unicom. Plate XI. . 



Fifth Genus, — Diodons, or Two-teethed 'yiMiales 

 Two- teethed Whale of Desmarest. 



Diodon Desmaresti ..... 

 Two-teethed Whale of Sowerby. 



Diodon Sowerhi. Plate XII. 



Sixth Genus Hyperoodontes 



Bottle-nosed Whale of Hunter, 



Ili/pcroodon Ho77jloriensis. Plate XIII. 



Seventh Genus. — Addons. Toothless Whales 

 Toothless Whale of Havre. 

 A. Dalei. Plate XIV 



Eighth Genus — Ziphius (Fossile) 



ZipJiiiis Planirostris ..... 

 The Delphini^ (with teeth in both jaws) . 



Ninth Genus Beluga .... 



White Whale. 



Beluga. Plate XV 



Tenth Genus. — Delphinapterus (Dolphin without 

 dorsal fin) ...... 



Delphinapterus Peronii. Plate XVI. 

 Eleventh Genus. — Globicephalus 

 The Deductor, or Ca'ing Whale. 



Globicephalus Dedudor or Melas. Plate XVII. 

 The Globiceps of Risso. 



Globicephalus JRissii. Plate XVIII. . 

 Fossile Globiceps ..... 



Twelfth Genus. — Phoc^na .... 

 The Common Porpoise. 



Phocoena Communis. Plate XIX. Fig. 1. . 

 The Porpoise of the Cape of Good Hopo. 



PhoccBTia Capensis. Plate XIX. Fig. 2. . 

 The Grampus. 



PlioccBna Grampus. Plate XX. 



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