Eastman. — Types of Fossil Cetaceans. 



PLATE 4. 



Fig. 1. Delphinus occiduus (Leidy). Miocene; Half-moon Bay, California. Type. 



Portion of rostrum, x \. 

 Fig. 2. Lophocetus calvertensis (Harlan). Calvert formation (Miocene) ; Calvert 



Cliffs, Maryland. Visceral aspect of left periotic, inverted, showing 



stapes preserved in place. X J. 



