434 



PHYSETERID^. 



A nearly-allied but probably distinct species, with the 

 teeth much nearer the apex of the jaw, was taken in the 

 Channel in 1840, and is the Dioplodon europosus of Gervais. 

 Other species have been recorded from the southern seas, 

 but further information is required as to their characters. 



The illustration at the head of this article is a copy of 

 Sowerby's plate, the vignette represents the skull in the 

 Edinburgh Museum, from one of Prof. Turner's figures. 



