XIV INTRODUCTIO. 



genera nomine Vitrinae conjunxerunt, id quod ego quoque feci, 

 Simpidopsin Beckii (auctori subgenus Succineae), inter Yitrinani 

 et Succineam ambiguam, sed ad Vitrinam ex mea sententia polius 

 referendam, huic generi adnumerans. — Plures autem species 

 ab auctoribus ob testae similitudinem Vitrinae adscriptae, prae- 

 sertim capenses, ad Helicem forsan meliore jure in posterum 

 referentur. 



§. 6. 

 in. Succinea Draparnaud. 



Testa imperforata*), tenuis, ovata vel oblonga; spira par- 

 vula; apertura magna, oblique ovalis; columella simplex , acula, 

 recta; perist. simplex, acutum. - 



Siiccinea Drap. hist. p. 24 et 29. 



— Lam. hist. VI. 2. p. 134. ed. Desh. VIII. p. 3 I 4. 



— C. Pfr. Nat. I. p. 13. 66. III. p. 3. 55. 



— Blainv. in Dict. d. sc. nat. vol. 32. p. 248. 



— Desli. in Ann. d. sc. nat. vol. 22. p. 3 45. 



— Rossm. Icon. I. p. 91. 



— Potiez et Mich. Gal. I. p. 66. 



— Gray Man. p. 177. 



— . Reeve Conch. syst. II. p. 88. 



— Catlow Conch. Nomencl. p. 167. 

 Amphibidima Lam. Ann. du Mus. vol. VI. p. 304. 

 Amphibidimus Montf. Conch. syst. II. p. 90. 

 Lucena Oken Lehrb. d. Nat. III. 



Tapada Stud. syst. Verz. p. 1 1 . 



Lucena et Amphibulina Hartm. in Sturm Faima .4bth. VI. H. 5. 

 p. 27. 40. 42. 



Amphibina Hartm. in Neue Alpina I. p. 208. 



Helix subg. Cochlohydra Fer. pr. p. 26. 



Helisiga Less. Voy. de la Coq. p. 316. 



Omalonyx d'Orb. voy. Amer. p. 230. 



Amphibulima, Succinea et Pelta*^) subg. Succin. Beck ind. 



Omalonyx, Amphibulina et Succinea Gray Syn. Br. Mus. 1842? 

 Animal amphibium, hehciforme, tentaculis superioribus tumidis, 

 conoideis. 



Testa Succineae a Bulimis columella simplice praeditis (B. 

 gallina-sultana etc.) generico charactere vix ullo distingui potest, 

 quare olim (conf, Proc. Zool, Soc. Lond. 1842. p. 187 et 188, et 

 Symb. II. p. 131.) has species inter Succineas enumeraveram ; 

 serius autem (Symb. III. et in hoc libro) e notis de animalium 



*) In pluribus speciebus spirae aiifractus a basi conspiciunlur, allamen hae 

 perforatae nominari nequeunt, quia interna (nec inferna) pagina lestae rece- 

 dente columella oculo exhibelur, uti in Bullis. 



**) Quid sit Pelta Cuniingii Beck ind. p. 100, nescio. 



