Cetacea — Archceoceti, etc. 



65 



Tlic ^vliales are divided into the Mystacoceti (or Whalebone Wall-case, 



whales), the Archj:oceti, and the Odontoceti (or Toothed No - 22 - 



whales) ; this last division includes the Sperm.- whales — the j$ Q -q" 

 ZipMidce, Hyperoodon, Ziphins, Mesoplodon, and the Delphinidce. 



Fig. 76. — A, left lateral aspect of cranium (much reduced) ; B, an upper molar tooth 

 (less reduced of Zeuglodon cetoides (.Owen). M. Eocene, Alabama, U.S.A. 



Fig. 77.— An imperfect skull of Squalodon Grateloupi (Pedmni), | nat. size ; from the 

 Middle Miocene of Barie, UrOme, France (after Gaudry). 



Fig. 78. — Three lower molars of Squalodon, from the Miocene of Europe. 



The Archceoceti embrace the genus Zeuglodon, hitherto Wall-case 



found chiefly in the Eocene formation of Alabama, Louisiana, No. 22. 



&c. It has six incisors, two canines, and 10 molars and pre- Zeuglodon. 

 (1876) p 



