2 IIELIX. 



Sagda, Proserpina, Helicella, Stenopus (synon. Nanina). — Cl. 

 Gray in parte prima Catalogi Pulmonatorum 1855 in familia 

 Arionidarum de generibus Vitrinella, Nanina, Stenopode, Ario- 

 phanta et Zonite scripsit; genera Helicidarum genuinarum adhuc 

 exspectantur. — Simili modo a Cl. fratribus H. et A. Adams 

 (Gen. rec. Moll. II. 1855) inter Helicellinas (subfamiliam Olea- 

 cinidarum) genera tractata sunt: Sagda (cum subgenere Gastro- 

 donta)^ Pitys, Zonites (subgen. Trochomorpha , Rotula, Videna, 

 Conulus), Discus, Helicella; inter Vitrininas genus : Pfeifferia 

 Gray; inter Helicinas (Helicidarum subfamiliam) genera: Strep- 

 taxis, Stylodonta (subgen. Janira, Erepta)^ Helix (subgen. Ga- 

 laxias, Camaena), Eurycratera (subgen. Leiostoma, Polymita), 

 Helicostyla (subgen. Callicochlins , Corasia, Axina, Chloraea, Oxy- 

 chona), Acavus (subgen. Tachea, Phasis, Geotrochus), Cochlea 

 (subgen. Otala, Parthena, Dialeuca, Coryda), Lucerna (subgen. 

 Labyrinthus, Isomeria, Dentellaria , Serpentidus Klein, Ohba, 

 Sonicornu Klein, Erigone), Macrocyclis (subgen. Arnpelita, Ly- 

 sino'6 Ad., Eurystoma, Vallonia)^ Solaropsis, Anchistoma (subgen. 

 Mesodon, Polygyra, Drepanostoma, Polygyratia Gr., Corillu Ad.), 

 Iberus (subgen. Lampadia, Macidaria, Helicigona, Campylaea, 

 Arianta, Elona Ad., Aegista, Thea), Ochthephila (subgen. Acti- 

 nella), Hygromia, Theba (subgen. Irus); inter Stenopidas genera: 

 Stenopus , Nanina (subgen. Hemiplecta, Ryssota, Microcystis, 

 Macrochlamys Bens. , Pachystyla Morch, Cysticopsis Morch), 

 Ariophanta, Paryphanta (subgen. Amphidoxa). — In synopsi 

 omnium specierum (Malak. Bl. 1855. p. 112) ex affinitate natu- 

 rali distributarum, genus Naninam (sectiones: Vitrinella Gray, 

 Pfeifferia Gray, Stenopus Gidld., Bensonia Pfr., Xesta, Hemi- 

 plecta et Rhyssota Alh., Ariophanta Desm. et Paryphanta Alb.) 

 sejunxi, et in genere Helice (sensu strict.) praeter sectiones 

 ab aliis institutas novae propositae sunt sequentes: Ammono- 

 ceras, Dibothrion, Actinaria, Plagioptycha , Sculptaria, Systro- 

 phia, Oxytes, Eremina, Thersites. — Cl. Schmidt (1855 Sty- 

 lomm. p. 11) species in Pomatia, Archelice, Macularia Alb. et 

 Ibero Montf. enumeratas, in una sectione nomine Pentataeniae 

 comprehendit. — Cl. Moquin-Tandon 1855 (Moll. de France II) 

 species nostri generis in Gallia viventes in duobus generibus 

 enumerat: Zonite (sectiones: Conulus, Calcarina, Aplostoma, 

 Verticillus) et Helice (secliones: Delomphalus, Caracollina, Tri- 

 gonostoma, Helicodonta, Petasia, Arianta, Corneola, Chilostoma, 

 Vortex, Lucena, Otala, Tachea, Cryptomphalus , Helicogena, 

 Coenatoria, Cantareus, Fruticicola, Hygromane , Zenobia, Jacosta, 

 Helicella, Heliomane, Theba, Cochlicella). — Cl. Albers tandem 

 nuperrime (Malak. Bl. IV. 1857. p. 91) genus Hyalinam Fer. illu- 

 stravit et descripsit. Sccliones ei sunt: Euhyalina [H. cellaria), 

 Mesomphix [H. olivetorum) et Gastrodonta H. interna Say.). 



