IMHODUCTIO. iX 



lorum Lmacinea habet. Genera sunt: a. Succinea, Bulimus, 

 Achalina, Clausiiia, Puppa, Tomogerus, Helix — b. Helicoliraax, 

 Teslacella, Parmacella, Limacella, Limax , Onchidium. 



9) Risso 1826 (Hist. IV. p. 58.) familiam HeUcidarum in 

 Adelobranchiis constituit, cujus genera sunt sequentia: Succinea, 

 llelicogena, Helix, Cantareus, Helicodonta, Helicigona, Hygromia, 

 llelicella, Theba , Cochlicella, Bulimulus, Rumina, Cochlicopa, 

 Ferrusacia, Acicula, Vediantius, Orbitina, Crenea, Saraphia, Clau- 

 silia, Pegea, Jaminia. 



10)"C. Pfeiffer 1828 (Naturg. IIL p. 3 et 55.) in universum 

 methodum Ferussacianam adoptat. Male autem praeter Helico- 

 phantam, Vitrinam, Succineam, Helicem et Vertiginem Cochlea- 

 iwn generibus etiam adnumerat Carychium et Cyclostoma. 



11) Menke 1828 (Synops. p. 8.) familiam Helicearum (se- 

 cundam Geophilarum) divisit in: a. tetraceras (genera: Helicarion, 

 Vitrina, Daudebardia, Succinea, Helix, Carocolla, Anostoma, Bu- 

 limus, Achatina, Clausiiia, Pupa el b. diceras {geuera: Vertigo, 

 Partula). — In secunda editione 1830 eadem distributio servata 

 est mutatis nominibus in : Geophila et Helicea. 



12)FIeming 1828 (Brit. anim. p. 255.) Helicidas priorem 

 subfarailiam Cochleadarum inoperculatorum habet. Genera: Ca- 

 rocolla, Helix, Bulimus, Achatina, Succinea, Vitrina. 



13) Rang 1829 (Manuel p. 156.) familiam Ferussacianam 

 adoptal [les LimaQons). Genera ei sunt: Vitrina , Helix, Vertigo et 

 Partula. 



14) Deshayes 1830 (Encycl. meth. H. p. 552. tabl.) in se- 

 cunda familia Pulmobranchiatorun) genera admittit: Vitrinam, 

 Helicem, Anostoma, Bulimum , Succineam et Pupam. 



15) Cristofori et Jan 1832 (Catal. p. 1.) genera Heliceo- 

 rum in familia secunda et terlia Pulmonatorum terreslrium enu- 

 merant. Familia secunda : Helicoidea (genera: Helicophanta, Vi- 

 Irina, Helix); familia tertia : Cochloid ea {genera: Achatina , Poly- 

 phemus, Columna, Bulinms, Pupa, Vertigo, Chondrus, Clausilia, 

 Succinea). 



16) Wiegmann 1832 (Handl). d. Zool. p. 523.) in secunda 

 familia Pulmonatorum — Helicinis — genera habet: Vilrinam, 

 Succineam, Helicem, Bulimum, Pupam, Clausiliam, Vertiginem. 



17) Fitzinger 1833 (Syst. Verz. p. 92.) Helicoidea et 

 Cochloidea Crist. et Jan nomine HeHcoideorum comprehendit. 

 Genera in Austria obvia: Helix , Conulus, Pyramidula, Monacha, 

 Helicella, Latomus, Isognomostoma, Trigonostoma, Chilostoma, 

 Gonyodiscus, Discus, Vitrea, Aegopis, Oxychilus, Ilelicopsis, 

 Clausilia, Fusulus, Styloides, Bulimus, Torquilla, Cylindrus, 

 Pupa. 



18" Beck 1837 hul. moll. p. 1.) Heliceorum genera in fa- 

 milia Cochleadeornm comprehendit et in quatuor Iribus dividil. 



