GASTEROPODA. 



Family CoxiDiE 



Contains Contts (Conarh's), Dibaphtts, Pleurotoma (Drillia, 

 Bela, Clionella, Daphnella), Clavatula (Tomella), Majngelia 

 (Clathurella), Lachesis, Cithara, and 



Borsoxia, Bellardi, 1839. 



Synonym, Cordieria, Bonault, 1848. 



Shell like Pleurotoma, with oblique folds on the thick colu- 

 mella, and thus establishes a passage between Pleurotoma and 

 Turbinella. 



Distribution, 4 species. East Indies. 



Fossil, 23 species. Eocene — . Prance, Italy, England, 

 United States. 



Gosavia, Stoliczka, 1865. 



Type, Voluta squamosa, Zokeli. 



Shell similar to that of Conus ; aperture narrow, elongated ; 

 base emarginate ; outer lips notched near the posterior suture ; 

 columella lip plicated, the anterior plaits being always the 

 strongest. 



Fossil, 8 species. Cretaceous. — Eocene ? Gosau ; India. 



[Family Natictd^.] 



The genera are — 



Natica, containing as sub-genera Naticospis, Neverita, 

 lunatia, Globulus, Olobularia, Polinices, Cernina, and 



Euspira (Agassiz), Morris and Lycett, 1850. 



Spire more or less elevated ; whorls few, distinct, angulated, 

 or carinated. 



Fossil, 6 species. Inferior Oolite — . Forest Marble. Eng- 

 land. 



"Euspira presents considerable affinities to the Palaeozoic 

 genus, Scalites (Hall), in the lines of growth having the appear- 

 ance of a slight fissure, where the angle occurs in the volution." 

 (Mor. and Lye.) 



Sigaretus (and sub-genus Naticina). 

 Lamellaria {Oncidiopsis and Marsenia), Veltjtina. 



Amatjra. 



Type, A. Candida, Moller. Greenland. 



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