— 505 — 



HelicRi-ion Ferussac 1821. Tabl. p. XXXI. et 1824. Voy. 



de Freyc. Zool. p. 465. 

 Effim. Helix; Arion. 

 Primum genns familiae Cochlearum, antea He- 



lixarion. 

 G. B. Sow. 1823. Gen. Sh. fasc. 11. * — Vitrinae 



injungit. 

 Latr. 1825. Fam. nat. — genus Geocochlidum. 

 Blainv. 1825. Malac. p. 462. — subgenus Helicoli- 



macis. 

 Rang 1829. Man. p. 157. — subgenus Vitrinae. 



Pariter Di:su. Ib38 in Lamck. ed. 2a Vlll. p. 13. 

 Menke 1830. Syn. p. 14. — genus Heliceorum tetra- 



cerorum. 

 Bfxk 1837. Infl. p. 2. — genus Vitrinidum. 

 Synon. Vitrina (sj^ec.) G. B. Sow. Gray. L. PfeifF. 



Helixarion Fcr. Bronn. G. B. Sow. jun. 



Helicea (Cobmaces) Lamck. 1809. Phil. zool. 

 Etym. Helix. 

 Prima famibaGasteropodum spiralium absque siphone. 



Genera: Helix, Amphibubmus, Hiebcina, Achatina, 



Bulimus, Pupa. 

 Lamck. 1812. Extr. d'un Cours. * — prima familia 



Trachebpodum, subdivisa in: 



a) quadricornia. Genera : Hebx , Helicella, 

 Helicina , Pupa, Bubmus, Amphibubmus, Acha- 

 tina. 



b) bicornia. Genera: Cyclostoma, Vertigo, Au- 

 ricula. 



Lamck. 1822. Hist. nat. VI. 2. p. 61. (ed. 2a VIIL 

 p. 10.) — prima famiba Trachelipodum phytopha- 

 gorum. 



a) quadricornia. Genera: Helix, Carocolla, 

 Anostoma, Helicina, Pupa, Clausilia, Bulimus, 

 Achatina, Succinea. 



b) bicornia. Genera: Auricula , Cyclostoma. 

 voL I. 32 * * 



