ON THE CLASSIFICATION OF THE CETACEA. 

 By FREDERICK W. TRUE. 



(Read April 24, 1908.) 

 In this communication I wish to call attention to the various 

 changes in the generally-accepted classification of the Cetacea pro- 

 posed by Professor Dr. O. i\bel, of the University of Vienna, in 

 connection with his recent study of the Miocene toothed whales — 

 chiefly those obtained from the vicinity of Antwerp, and now in 

 the museum of Brussels.^ Professor Abel's classification (1905) 

 is as follows : 



Odontocctcs 

 -|- Archeocetes 

 -f- Squalodontidse 

 Physeteridse 

 Ziphiidas 

 -j- Eurinodelphidse [ Argyrocetinse 

 Acrodelphidse . . J Acrodelphinse 

 -|- Saurodelphidas Iniinae 



Platanistidre I Beluginse 



Delphinidre 



I woiPd call attention particularly to the following features to 

 which my remarks will mainly relate : 



1. The use of the term " Odontocetes " for all toothed whales 

 and zeuglodonts. 



2. The subordination of the " Archeocetes " to the " Odonto- 

 cetes." 



3. The new family Eurinodelphidse. 



4. The new family Acrodelphidse (should be Iniidse). 



5. The inclusion of Delphinapterus and Monodon in this family 

 instead of in Delphinidse, and the inclusion of Stcnodclphis and 

 Pontistes. 



^ Mem. Mits. Roy. Hist. Nat. Belgique, i, 1901 and 3, 1905. 



385 



