INDEX. 



Plate. Fig. 

 Mytilus Umbilicatus - - _ - 40 



' cygneus » - - - "55 



barbatus 



UNIVALVIA. 



Cypraea ped'iculus 

 Bulla pallida 

 Voluta tornatilis 

 Murex Comeus 

 Trochus Zizyphinus 

 Turbo Lineatus 

 -1 striatus 



■ perversus 

 Helix cornea 

 . lapicida 



.. Auricularia 



■ stagnalis 



■■ zonaria 

 Dentalium entalis 



70 



