PLATE SCI. 



- B Sonrri). Jun^ 



1.2. Ceniliinin rericnlattiai . o.4. C. metnla. 

 5. 6. C. adversum . 7. 8. Cerithopsis inlprrularp . 



Iondo7i.TublUhed hy John T^ liorst. 1850. 



