CASH: FOSSIL MOLLUSCA. 
85 
Euomphalus, Pleurotomaria, Trochotoma, Alaria, Hydrobia^ 
Cerithium, Littorina, Amberleja, Rissoa, Turritella, Nerita, 
Neritopsis, Phasianella, Pitonellus, Turbo, Cryptoena, Eucyclus, 
Monodonta, Trochus, Patella, Dentalium, Acfcoeon, Bulla. 
Lamellibranchiata. — Pholas, Gastrochoena, Saxicava^ 
Solemya, Corbula, Anatina, Pleuromya, Arcomya, Ceromya, 
Thracia, Pholadomya, Goniomya, Myacites, Homomya, Panopsea, 
Gresslya, Mactra (?), Lutraria (?), Sanguinolaria, Tellina, Venus, 
Cytherea, Isodonta, Pullastra (?), Cypricardia, Cyprina, Cardium, 
Isocardia, Tancredia, Unicardium, Protocardium, Lucina, Corbis, 
Opis, Cardinia, Cardita, Astarte, Mytilus, Modiola, Myoconcha, 
Hippopodium, Lithodomus, Perna, Avicula, Aviculopecten, 
Inoceramus, Corbicella, Crenatula, Pinna, Trichites, Trigonia, 
Posidonomya, Pteroperna, Cassianella, Monotis. Area, Macrodon, 
Cuculloea, Isoarca, Nucula, Leda, Pecten, Hinuites, Lima, Limea, 
Anomia, Plicatula, Gryphaea, Sowerbya, Quenstedtia. 
CRETACEOUS. 
Cephalopoda. — Ammonites, (Cosmoceras,&c.) Belemnites, 
Belemnitella, Scaphites, Hamites, Ancyloceras, Crioceras, Heli- 
coceras, Nautilus. 
Gastkopoda — Avellana, Solarium, Pleurotomaria, Roste- 
llaria, Cerithium, Turritella, Delphinula, Trochus, Emarginula, 
Dentalium. 
Lamellibranchiata. — Pholas, Teredo, Mya, Corbula, 
Thracia, Pholadomya, Panopoea, Thetis, Isocardia, Lucina, 
Cryptodon, Corbis, Astarte, Perna, Avicula, Gervillia, Inoceramus, 
Pinna, Trig-onia, Cuculloea, Nucula, Pecten, Lima, Spondylus, 
Plicatula, Ostrea, Placunopsis, Exogyra, Dianchora. 
PLEISTOCENE. 
Gastropoda. — Trophon, Fusus, Pleurotoma, Buccinum, 
Purpura, Columbella, Natica, Scalaria, Admete ( = Cancellaria), 
Trichotropis, Littorina, Bithynia, Valvata, Turritella, Cemoria, 
Trochus, Lepeta, Puncturella, Dentalium, Planorbis, Limnea, 
