Vroeiius (s. Cochlea ore depresso) D'Argenv. 1757. 

 Conchyl. p. 213. 

 Familia Concharum marinarum univalvium. 

 = Trochus List. et Helix sp. 

 Tpoehiis Adanson 1757. Seneg. p. 167. 

 Genus Operculatorum. 

 = Littorina Fer. 

 Vroeliii8 LisT. emend. 



HiJMPHR. 1797. Mus. Calonn. * — emiltunturOnustus, 



Obeliscus, Apiculum, Sol. 

 Lamck. 1799. Prodr. p. 74. et 1801. Syst. p. 85.— 



segregantur Solarium, Monodonta, Pyramidella. 

 Cuv. 1800. Anat. comp. * et 1830. R. a. ed. 2a. (ed. 

 Voigt. III. p. 152.) — subgenus Trochi. 

 Pariter ScnwEiGG. 1820. Naturg. p. 735. 

 Feruss. 1821. Tabl. sysf. p. XXXIV. 

 Rang 1829. Man. p. 199. 

 Gein. 1845. Grundr. d. Verst. p. 545. 

 Lamck. 1804. Ann. du Mus. IV. p. 46. 

 RoissY 1805. Moll. V. p. 312. 

 Cuv. 1808. Ann. du. Mus. XI. p. 170. * 

 Lamck. 1809. Phil. zool. — geuus Calyptraceorum. 

 MoNTF. 1810. Conch. sysl. II. p. 178. — typus: Tro- 

 chus Niloticus L. .Separantur Imperator, Infundi- 

 hulum, Calcar, Tectus, Meleagris, Cantharidus. 

 Lamck. 1812. Extr. d'un Cours. • et 1822. Hist. VU. 

 p. 9. (ed. 2a IX. p. 118.) — in Turbinaceis. 

 Pariter Phil. 18:36. Moll. Sic. p. 174. et 1844. ib. 

 II. p. 149. 

 PuscH 1837. Pol. Palaont, p. 106. 

 .^NTON 1839. Verz. p. 55. — subgenera: Tro- 



chus, Turbo. 

 Jay 1839. Cal. shells p. 70. 

 Sow. jun. 1839. Conch. Man. p. 108. et 1842. 



ib. ed. 2a p. 279. 

 Reeve 1842. Conch. ayst. II. p. 162. 

 Catlow 1845. Conch. Nomenc). p. 214. 



