Eastman. — Types of Fossil Cetaceans. 



PLATE 1. 



Lophocetus calvertcnsis (Harlan). 



Calvert formation (Miocene) ; Calvert Cliffs Maryland. Type. Cranium viewed 

 from the dorsal aspect, with atlas still engaged by matrix with occiput. 

 Noticeable is the asymmetry of mesethmoid and nasals, and the longitudinal 

 cleft dividing the nodulose summits of the latter, behind which are seen the 

 flange-like frontals. X |. 



