O TYPE OV THE FOSSIL CETACEAN AGOROPHIUS PYGMjliUS 



beautifully-preserved teeth are in situ in both upper and lower jaws. As nothing 

 remains of the posterior portion of the skull, no opinion can be formed regarding 

 the characters of the parietals, the form of the temporal fossae, etc. Only the 

 anterior portion of the frontals is preserved. This portion appears to resemble 

 the same part in Sqiialodon and the ordinary delphinoids, rather than in Agoro- 

 phius. The premaxillse are broader than in Squalodon and nearly as flat. They 

 are not thickened and bent upward posteriorly, as in Agorophius. The crowns of 

 the upper teeth are much lower and broader than that of the single tooth origi- 

 nally found with the skull of Agorophius, and the distal ones have but one cusp 

 anteriorly, while that of Agorophius has two or perhaps three. Altogether it 

 seems probable that Neosg[iialodon bears no close relationship to Agorophius. 



