TABLE OP FAMILIES AND GENBEA. XXV 



Page 



Family CrCLOPHOEID^ (continued). 



Dissostoma 250 



Callianella 250 



Family PATELLID^ 250 



Patella 250 



Nacella 251 



FamUy NERITID^ 251 



Nerita 251 



Neritina 251 



Family UMBOISrilD^ 253 



Teinostoma 253 



Family DESPOENTD^ 255 



Despoena 255 



Family TROCHID^ ' . 255 



Tectus 255 



Gibbula 255 



Calliostoma 256 



Family TURBINID^ 250 



Collonia 250 



Family DELPHINULID^ 257 



Delphinula 257 



Liotia 257 



Family FISSURELLtD^ 257 



Fissurella 257 



Emarginula 258 



Scutum 258 



c 



