EXPLANATION OF FIGURES ON PLATE VII. 
15. Strophia perplexa, front view of type shell; 15a, left side of 
another individual. 
Jj6. Strophia nitela, front view of type shell; 16a, left side of the 
same individual. 
17. Strophia alba, front view of type shell; 17a, left side of same 
individual. 
18. Strophia lentiginosa, front view of type shell; 18a, left side of 
the same individual. 
19. Strophia fusca, front view of type shell; 19a, left side of same 
individual. 
20. Strophia incana, front view of shell; 20a, right side of the same 
individual. 
21. Strophia inflata, front view of type shell; 21a, left side of same 
individual. 
CONTRIBUTIONS TO SCIENCE, VOL. I. 
