GENERAL CLASSIFICATION 



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Wing-shells. 

 Rostellaria. 

 Pteroceras. 

 Strombus. 



Purpuraceans. 



Cassis (helmet-shell). 

 Harpa (harp-shell) 

 Dolium (tun). 

 Terebra (auger-shell). 

 Eburna. 



Columellarians. 

 Canoellaria. 

 Marginella. 

 Columbella. 



Convolutes. 

 Ancilla [Ancillaria. H. E.]. 

 Oliva (olive-shell). 

 Terebellum. 



Buocinum (whelk), 

 Conoholepas. 

 Monoceros. 

 Purpura. 



Nassa. 



Mitra (mitre-shell). 

 Voluta. 



Ovula. 



Cypraea (cowry). 

 Conus (cone-shell). 



(3) CepTialopods. 

 {A) With muUilocidar test. 

 Lenticulaceans. [Foraminifera. H. E.] 

 Miliola. Discorbina. 



Gyrogonita. Lenticulina. 



Kotalia. Nummulites. 



Renulites. 



LitvMaceans. 



Orthooeras [Cephalopod. H. E.]. 

 Hippurites [Lamellibranch. H. E.]. 

 Spirula [Cephalopod. H. E.]. Belemnites [Cephalopod. H. E.]. 



o • !• -i HForaminifera. H. E.l 

 SpiromutesJ "- ■" 



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. 



