1 Trochus Niloticus (much reduced). 



2 Chlorosioma pellis-serpentis. 



3 ChloTostoma brunnea. 



Photograph by Maxwell Smith. 



TOP SHELLS 



4 Norrisia Norrisii. 



5 Callinstoma tigris. 



6 Rotclla giganlea. 



7 Livona pica 



8 Chlorosioma jiinebrale. 



9 Calliostoma annulata. 

 10 Rocks at La Jolla, Cal. 



