ELASMOBRANCHII. 



47 



25 26 



Fig. 15. — Lamna cuspidata Agassiz. 1, Vincentown (Bryan) ; 2-4, Mon- 

 mouth Co. (Knieskern) ; 5-7, Vincentown (Bryan) ; 8-9, Monmouth Co. 

 (Knieskern) ; 10-13, Burlington Co. (Conrad) ; 14, Burlington Co. (Conrad) ; 

 15. Vincentown (Bryan) ; 16, Pemberton (Budd) ; 17-19, Vincentown 

 (Bryan) ; 20-21, Burlington Co. (Conrad) ; 22, Allowaystown (Yarrow) ; 

 23, Vincentown (Bryan) ; *24, Farmingdale (Johnson) ; ^25-26, Farmingdale. 



ence of small pointed basal cusps. Some of the specimens listed 

 below may belong- really to Isurus desorii, I. acuminatus, or 

 others. 



Formation and locality. The following teeth, none of which 

 have the formation given, are in the collection of the Academy: 



