210 



MAMMALIA. 



Pliocaina (Ciiv.). Porpoise. Head blunt, im- 

 beaked ; teeth various in "both jaws ; a dorsal 

 placed far back. 



P. communis. Fig. 334 ; -^ n.s. 

 orca. 

 melas. 



333 



334 



Beliylihiorliynchus (Blainv.). A lengthened beak, 

 not separated from the forehead by a groove ; a 

 small dorsal. 



D. micropterus. Fig. 335 ; ^ n. s. 



