126 GILL, PRIMARY SUBDIVISIONS OF THE CETACEANS. 



Globiocephalus Gray. 



Globiocephalin^. 



Dioplodon Gerv. 

 et al. (extinct). 



V. ZIPHIIDiE. 



ZlPHIIN^. 



Ziphius Cuv. (^=IJpiodon Graj) . 



Berardius Duv. 



Mesoplodon Gerv. {^=Ziphius Gray). 



ANAENACINjE. 



Anarnacus Ijac^Hyperoodon Lac. 



VI. PHYSETEKID^. 



Phtseterin^. 

 Fhyseter'Lima..=zCatodon Gray -\- Physeter Gray -{-? Megcmeuron Gray. 



KOGIIN^. 



Eogia Gray. 

 Orycterocetus Leidy. 



Bhahdosteus Cope. 



Agaphelus Cope. 

 Megaptera Gray. 



Physalus Gray. 

 Sihhaldius Gray. 



Balcena Linn. 

 Euhalmna Gray. 



Genera incebt^ sedis. 

 VII. RHABDOSTEID^E. 



C. MYSTICETE. 



VIII. BAL^NOPTERID^. 

 Agaphelfn^. 



Megapterin^ . 

 Bal^nopterin^. 



Callignathus Gill. 

 Ontocetus Leidy. 



Bhachianectes Cope. 



Eschrichtius Gray. 



Balcenoptera Lac. 



IX. BAL^NID^. 



Hunterius Gray. 

 Palceocetus Seeley (extinct). 



