292 PROSERPINA. — RULIMUS. 



7. P. bidentata Adams. •{■ 



«Tesla P. nitidae similis, sed niullo minor, superne lineis 

 spiralibus impressis pluribus notata, minus glabra, lutescenti- 

 viridis ; apertura dentil)us 2 instructa, altero prope basin co- 

 lumeliae, altero paulo supra eum. — Diam. maj. 0,21, min. 

 0,13, alt. 0,08 poll. (A.) 



Pi^oserpina hidentata Adams Contrib. lo Conchol. N. 5. p. 81. 



Habitat in insula .lamaica. 



* 



8. opalina Adams. (Coll. 4. — Ckemn. l. c. 



p. 13.) Mon. I. p. 12. 



Obs. Ad hoc genus referenda videtur Helix Arnoudii Mich. (foss.) 

 in Gu6r. Mag. 1837. t. 81. f. 7 — 9. — Exckidatur Prnxerpina disroidea 

 Ad. = Helix Proserpimila Pfr. 



IX. Bulimus Scopoli. 



De characteribus hujus generis difficillime definiendis con- 

 ferantur, quae in Monographia I. p. XIX breviter exposui. 

 Verbis: " apertura longitudinalis » addendum est: «(plano 

 aperturae saepe inclinato, diametro autem longitudinali axi 

 subparallela) ». Excludantur praeterea species 171 — 192, quas 

 ducibus auctoribus recentioribus, inprimis Cl. Reeve, ad genus 

 Partulam retuli. 



CI. Gray (Proc. Zool. Soc. 1847. p. 174) in familia Ileli- 

 cidarum sectionem proponit: BuUmina, complectentem genera: 

 Orthostylum, Bulimum, Partulam., Zuam, Tornatellinam? , Buli- 

 mulum,, Pupam, Vertiginem, Torquillam, Alegaspiram, Clausi- 

 liam, Baleam et Brachypodem. Ex his ad genus meo sensu 

 circumscriptum pertinent: Orthostylus, Bulimus, Bulimulus et 

 Torquillae pars. — Cl. Albers (Helic. p. 49 et 135) genus 

 in eodem sensu adoptat, exclusis Partula et Bostryce. Sectiones 

 bene adumbratae sequentes sunt: Orthostylus , Phengus, Eu- 

 doxus, Amphidromus, Hapalus, Chrysallis, Caryodes, Borus, 

 Orphnus, Placostylus , Coniclus, Pachyotus, Anthinus, Aspastus, 

 Goniostomus, Odontostomus , Pelecocheilus , Charis, Otontomus, 

 Hamadryas, Drymaeus , Lejostracus, Mesembrinus, Scutalus, 

 Naesiotus, Peronaeus, Ataxus, Rabdotus . Leptomerus , Nothus, 

 Eurytus, Plectostylus , Orthalicus, Liparus, Limicolarius , Oxy- 

 cheilus, Obeliscus, Opeas, Rimina, Pyrgus. Colobus , Cochlicellus, 

 Napaeus, Merdigerus, Cylindrus, Brephidus, Rachis, Petraeus, 

 Mirus , Chondrus. 



