EXPLANATION OP PLATE XLIV. 



SCAPHITES SIMILIS Whif. (p. 267). 



Figs. 1. Lateral view of the speoimea described. 



2. Diagram of a septum, twice enlarged. Acad. Nat. Sci., Pliila. 



SCAPHITES RBNlFORMis Morton (p. 264). 



3. A reproduction of Dr. Morton's figure, no authentic specimen having been seen. 



SCAPHITES iKis Conrad (p. 265). 



4, 5. Dorsal and lateral views of one of Mr. Conrad's types. 

 0. Lateral view of the specimen originally figured by Mr. Conrad. 



7. View of an outer chamber, also one of his types. Acad. Nat. Sci., Phila. 



SCAPHITES HippocRBPis De Kay (p. 261). 



8. Lateral view of the specimen originally figured by Dr. Morton. 



9-11. Lateral, dorsal, and vertical views of a larger specimen, both being in the Acad. Nat. Sci. 

 collection. 

 12. Diagram of a septum, twice enlarged, from the last. 



SCAPHITES NODOsus Owen (p. 261). 



13, 14. Lateral and dorsal views of a fragment of an outer chamber referred to this species. 

 Rutgers College. 

 386 



