20 BULLETIN OF THE 



Family 



Genus DALIUM Dall. 



Daiium solidum Dull. 



Family CASSIDID^E. 



Genus CASSIS Lamarck. 



Cassis inflata Shaw. 



Genus GALEODEA Link. 

 Galeodea Coronadoi Crosse.* 



Genus LAMBIDIUM Link. 

 Lambidium oniscus Linne.* 



Genus ONISCIDIA Swainson. 

 Oniscidia Dennisoni Reeve.* 



Genus SCONSIA Gray. 

 Sconsia striata Lamarck.* 



Family DOLIIMI. 

 Genus DOLIUM Lamarck. 



Subgenus EUDOLIUM Dall. 



Eudolium Crosseanum Monterosato. 

 Eudolium Verrillii Dall.* 



Family AMPHIPERASIDjE. 



Genus AMPHIPERAS Gronovics. 



Subgenus SIMNIA Rrsso. 



Simnia acicularis Lamarck. 

 Simnia piragua Dall.* 



Section NEOSIMNIA Fischer. 

 Simnia intermedia Sowerby. 

 Simnia uniplicata Sowerby. 

 Simnia aureocincta Dall. 



Genus PEDICULARIA Swainson. 

 Pedicularia decussata Gould. 



