25 



84 Madeirensis little brown band- 

 ed 



85 bicarinata 



double-keeled 



Madeira. 



NERITA. 



NERITE. 



1 duplicata 



2 patula 



3 plumbea 



4 ornata 



5 Australis 



doubled Br.M. 



wide snail-shaped 



lead-coloured 



tooth-lipped ' — 



Cap 



S. America. 



6 crepidularia Slipper 



New Holland. 



