GENERAL CLASSIFICATION 



165 



Wing-shells. 

 Rostellaria. 

 Pteroceras. 

 Strombus. 



P urpuraceans. 

 Cassis (helmet-shell). 

 Harpa (harp-shell) 

 Dolium (tun). 

 Terebra (auger-shell). 

 Eburna. 



Buccinum (whelk). 

 Concholepas. 

 Monoceros. 

 Purpura. 



Nassa. 



Columellarians. 

 Cancellaria. 

 Marginella. 

 Colurabella. 



Convolutes. 

 Ancilla [Ancillaria. H. E.]. 

 Oliva (olive-shell). 

 Terebellum. 



Mitra (mitre-shell). 

 Voluta. 



Ovula. 



Cypraea (cowry). 



Conus (cone-shell). 



(3) Cephalopods. 

 (A) With multilocular test. 



Lenticulaceans. 

 Miliola. 

 Gyrogonita. 

 Rotalia. 

 Renulites. 



[Foraminifera. 



H.E.] 

 Discorbina. 

 Lenticulina. 

 Nummulites. 



o • 1- -i. k Foraminifera. 

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Spirula [Cephalopod. H. E.]. 



Lituolaceans. 



Orthoceras [Cephalopod. H. E.]. 

 Hippurites [Lamellibranch. H. E.]. 



H.E.]. 



Belemnites [Cephalopod. H. E.]. 



Nautilaceans. 



Baculites. 

 Turrilites. 

 Ammonoceras. 



Ammonites. 



Orbulites. 



Nautilus. 



(B) With unilocular test. 

 Argonautaceans. 

 Argonauta. 

 Carinaria [Gastropod. H. E.]. 



(C) Without test. 



Sepiated. 



Octopus. 



Calamary. 



Cuttle-fish. 



