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DIVISION VII. Shell with the whorls longitudinally angulated on both 



sides. 



Scientific name. Locality. Scientific name. Locality. 



Scarabseus, Asia, Am'ooyna, China. Afra, Goree. 



DIVISION VIII. Shell umbilicated, roundish, obtuse, diaphanous, brittle, 

 and aperture subtr (angular. 



Iantlnna, 



So. Seas, Madagascar. Globosa, 



Madagascar. 



DIVISION IX. Shell conical, obtuse, distorted, the side opposite the aper- 

 ture gibbous, aperture compressed. 



Lyonetiana, Isle of France. 



DIVISION X. Shell subumbilicated, pyramidal, and summit obtuse. 

 Epystilium, South Seas. Papilla, 



DIVISION XI. Shell ventricose, pellucid^ and aperture ovate. 

 Family 1st. Imperforate. 



Stagnalis, 



Britain. 



Inflata, 



Devonshire. 



Fragilis, 



Denmark. 



Opacea, 



Saxony. 



Palustris, 



Britain. 



Tentacula, 



Hamburg. 



Fossaria, 



do. 



Lutea, 



Europe. 



Albicans, 



Hamburg. 



Sicula, 



Sicily. 



Putris, 



Britain. 



Glutinosa, 



Britain. 



Peregra, 



Fredericksburg, Seine. 



Laevigata, 



do. 



Limosa, 



Europe. 



Balthica, 



Baltic. 



Truncatula, 



Saxony. 



Neretoidea. 





Repanda, 

 Canalis, 



Thanglestadt 

 Britain. 



Family 2d. Umbilicated. 

 Auricularia, 



Britain. 



Consolidata, 



Decollata, 



Truncata, 



DIVISION XII. Turreted. 

 Family 1st. Jlpex truncated. 



Surinam. 



South of Europe. 



St. Domingo. 



Calcarea, East Indies. 



Contorta plicata, Denmark. 



