PLATE O.O. 



E F kXA.eUll. 



1. Cerithiopsis TubercaJaris ,V 2 its operculiua . 

 3. Operc.of Centluuin retLcnlalaiiQ . -i.OtiiLa olis. 5. Slilifei^ TartorLis 

 G . Vekitijia plicatilis . 7 ^ Wl uti.ua laevigata . 



Zo?id<?n. PublisJied by John Van Voorst. /860. 



