Tab. III. 



1. Emarginula fissura, Lin. 

 9. — crassa, Sowb. 



3. Puncturella noachina, Lin . 



4. Scissurella crispata, Flemg. 



5. Mølleria costulata, Møll. 



6. Cyclostrema basistriatum, Jeffr. 



7. Margarita helicina. Fabr. . 



8. — do. ; juv. 



9. — grønlandica, Chemn. 

 10. — olivacea, Brown. 

 n. ~ cinerea, Couth. 



12. Machæroplax varicosa, Migh. 



13. — albula, Gould. 



