422 CYCLOSTOMACEA. HELICINACEA. HELICINA §. 12. 
fasciatum Say. — Chondropoma fasciatum Schauf. in Cat. Pat. p. 96. 
hyalaeum Sow. I. 316. 
marginatum Chemn. (IV. 235.) — Cyclostoma murrhinum Menlce. 
Genus Heterocyclus Crosse (supra p. 54) teste ipso 
Auctore hie omnino eliminandum et ad Valvatidas juxta Val- 
vatam transferendum est. (Crosse in Journ. Conch. XXIV. 
1876. p. 99.) 
Helicinacea Menke. 
(p. 237.) 
Cl. Troschel (Gebiss der Schnecken II. Abth. 4. 1875. 
p. 162) familiam a Cyclostomaceis, Taenioglossorum familia, 
separat et ad Rhipidoglossa, una cum Proserpinaceis, Hydro- 
caenaceis, Neritaceis, Trochoideis, Stomatellaceis, Haliotidis et 
Fissurellaeeis referendam declarat, dum antea (eodem opere I. 
p. 75) similitudinem modo denuntiaverat et Helicinacea juxta 
Cyclostomacea inter Pulmonata operculata tractaverat et ge- 
nerum Trochatellae, Helicinae et Alcadiae species illustraverat. 
IV. Helicina Lamarck. 
(p. 243.) 
§• 12. 
120. aclspersa Pfr. — Helicina Lanieriana Orb . ? 
Nomine tantum nota: 
Helicina Mighelsi Adams , Jay Catal. 1850. p. 262. 
Species fossilis: 
? Helicina striata Defr. 1820. 
