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DIVISION IX. ARGON AUTACEiE. 



GENERA. 



1. Arconauta. 



Very thin ; the last turn 

 so disproportionately large 

 as to give the spire the ap- 

 pearance of the poop of a 

 ship. PI. 13, fig. 4. 



Mediterranean. At- 

 lantic. Fossil species 

 between Rouen and St. 

 Ouen (PL 3, fig. 9), 

 and at If Anvers. V. 

 Animal, p. 55. 



DIVISION X. CARINACE7E. 

 GENERA. 



1. Carinaria. Lam. 



Conical, flattened at the Mouth entire, oval, Mediterranean, At- 

 sides. The summit an oblong, narrowed to- lantic, Indian Seas. 

 involute and very small wards the angle of the V. Animal, p. 72. 

 spire; the back with a keel. 

 clentated keel: very thin. 

 PI. 5, fig. 16. 



DIVISION XI. VAGINACEJE. 

 GENERA. 



1. Vaginellitfs. Daudin. 



Tubular, oblong ; thin A superior but no la- In the interior of the 



and pointed at one end, teral aperture. fossil shells of the envi- 



and an enlarged mouth at Vons of Bourdeaux. 

 the other. PI. 3, fig. 10. 



2. Cleodora. Peron. 



Cartilo-gelatinous ; like ..... - - Seas of warm climates. 



a reversed truncated py- y. Animal, p. 56. 



ramid. PI. 5, fig. 2. 



3. Cymbulia. Peron. 



Cartilo-gelatinous, very Aperture lateral and Mediterranean, near 



transparent, crystalline, anterior. Nice. 

 oblong, like a truncated y Animal, p. 56. 



sabot or boat. PI. 5, fig. 3. 



4. Hyalea. Lam. 



Horny, oval-globulous ; - - Mediterranean, At- 



tridenlatedposteriorly.pl. lantic, etc. V. Animal, 



5 > fig- *• p. 56. 



