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Scientific name. 

 Personatus, 

 Petholatus, 

 Cidaris, 



DIVISION II. Shell imperforate, solid. 

 Family 1st. With a smooth exterior. 



Locality. Scientific name. Locality. 



Helicinus, 

 Amboyna, Mauritius. Imperialis, China. 



Moluccas. 



Family 2d. With the exterior striated. 



Simex, 

 Calathiscus, 



Britain, 

 do. 



Cochlus, 

 Smarajrdus, 



Maurit. Asia, China. 

 New Zealand. 



Castaneus, 

 Crenulatus, 



Family 3d. With the exterior granulated. 



West Indies. 



Papyraceus, East Indies. 



Family 4th. Exterior nodidous. 



Trochiformis, 



Marmoratus, 



Sarmaticus, 



Southern Ocean. 

 Asiatic Ocean, China. 

 Moluccas, C. G. Hope. 



Olearius, India, Coromandel. 



Coronatus, Moluccas, Nicobar Isles. 



Canaliculars, 

 Setosus, 



Family 5th. Exterior ribbed or grooved. 



Moluccas, Philippines. Spawerius, East Indies. 



Mauritius. Spenglerianus, do. 



Family Gth. Exterior somewhat spinous. 



Chrysostomus, 



Tectumpersicum, 



Pagodus, 



Calcar, 



Stellaris, 



Aculeatus, 



S. Seas,R. Sea, Amboy. 

 Asiatic Ocean. 



do. do. 



China. do. 



South Seas. 

 Nicobar Isles. 



Stellatus, 

 Armatus, 

 Rugosus, 

 Cornutus, 

 Radiatus, 

 Moltkianus, 



Med., Scotland. 



East and West Indies. 



China. 



Red Sea. 



MINUTE SHELLS. 



Semicostatus, 



Ruber, 



Vitreus, 



Punctura, 



Arenarius, 



Unifasciatus, 



Nivosus, 



Labiosus, 



Devon. Scotland. 



Pembroke, Cornwall. 



Cornwall. 



West of England. 



Salcomb Bay. 



Britain. 



Devonshire. 



Britain. 



Ulv?E, 



Ventrosus, 



Subumbilicatus, 



Cengillus, 



Interruptus, 



Semistriatus, 



Albulus, 



Britain. 



do. 

 Weymouth. 

 Britain. 



England and Wales. 

 Devonshire. 

 Greenland Seas. 



