INDEX. 



Plate. Fig. 

 Mytllus Umbillcatus - - - . - 40 



— • cygneus - . _ _ - 55 



■ barbatus - - - - - 70 



UNIVALVIA. 



Cypraea pcdiculus 

 Bulla pallida 

 Voluta tornatills 

 Murex Coineus 

 Trochus Zizyphimjs 

 Turbo Lineatus 

 . striatus 



— — perversus 

 Helix cornea 

 .. lapicida 



, Auricularia 



. stagnalis 



<- zonaria 



Dentalium entalis 



