TABLE OF FAMILIES, GENEKA, AND SUBGENERA. 



Family Delphinulid.e : page 



Liotia 283 



Family HALiOTiDiE : 



Haliotis 284 



Family Pleurotomariid^ : 



Pleurotomaria . 286 



Family Fissdrellid^ : 



Fissurellidea . . . . . . . 2 "^7 



Emarginula ....... 288 



Subemarginula ...... 289 



Tugalia 289 



Class SCAPHOPODA. 



Family Dentaliid^ : 



Dentalium 290 



Cadulus 297 



Class LAMELLIBRANCHIATA. 

 Order Tetrabranchia. 



Family OsTREiDiE : 



Ostrea 298 



Gryphgea 3U2 



Family Anomiid^e : 



Placimanomia ....... 303 



Family Dimyid^ : 



Dimya 305 



Family SpoNDTLiDiE : 



Spondylus 307 



Family Limid^e : 



Lima . 309 



Limatula . . . . . . 311 



Limea 312 



Family Pectinid^e : 



Peoten 313 



Pseudamussium ...... 322 



Amussium ....... 324 



Family Aviculid^ : 



Margaritifera 325 



Vulsella 326 



Pinna . 326 



