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DIVISION V. Shell resembling last division^ but the outer lip on the out- 

 side is muricated at the base. 



Family 1st. Spire short. 



Scientific name. Locality. Scientific name. 



Erinaceous, Tranquebar, China, Am, Fimbria, 



Ocean. Glaucum, 



Biarmatum, Vibex, 



Locality. 

 East Indies. 

 Amboyna, China. 

 E. & W. I., Tranquebar. 



Papillosum, 

 Glans, 



Family 2d. With the spire elevated. 



Ind. and Asiat. Oceans, 

 do. 



Mutabile, 

 Gibbum, 



Senegal. 



Med., and Amboyna. 



DIVISION VI. Shell with the pillar lip dilated and thickened, and aper 



hire wide. 



Family 1st. With the pillar lip much thickened and dilated. 



Arcularia, China, Amboyna, Maurit. Verrucosum, 



Coronatum, Madagascar. Gibbosulum, 



Hepaticum, Dorsetshire. Clathratum, 



Pullus, Med., Malacca, Senegal. Niveum, 



Thersites, Asiatic Ocean. Lima, 



Ceylon, Madagascar. 

 Med., Asiatic Ocean. 

 East Indies. 

 Tranquebar. 

 East Indies. 



Family 2d. With the pillar spread, but not very thick. 



Textum, 



Reticulatum, 



Ambiguum, 



Macula, 



Strolatum, 



Plicatulum, 



Britain, Med., Azores, 

 do. 

 do. Norway. 

 Tranquebar. 

 East Indies. 



Piscatorium, 



Mauritii, 



Armillatuin, 



Nitidulum, 



Vcntricosum, 



East Indies. 

 Mauritius. 



Med., Goree. 

 St. George's Bay. 



Family 3d. Obtuse, convex, depressed and smooth. 

 Neritium, Mediterranean. 



DIVISION VII. Shell with longitudinally keeled un coronated ribs, pillar 



smooth. 



Harpa, E. Ind., Mauritius, Amb. Crenatum, Mauritius. 



Cancellatum, Tranquebar. Costatum, Philippine Isles. 



