INDEX. 



Plate. Fig. 

 Mytilus Umbillcatus - • - » 40 



. cygneus - 55 



-" ■ barbatus - - ... 70 



Cypraea pedlculus 

 Bulla pallida 

 Voluta tornatilis 

 Murex Corneus 

 Trochus Zizyphinus 

 Turbo Lineatus 



, — striatus 



,.. perversus. 



Helix cornea 

 n-i — laplcida 

 u. -.- Auricutaria 

 . stagnalis 



r .. ■■- zonana 

 Pentalium entalis 



UNIVALVIA. 



43 





66 





57 





38 





5* 





7i 





59 





7* 





39 



1 



39 



a 



5i 



1 



5i 



a 



65 





48 





