98 C. A. Wesferhmd, Synopsis Molluscorum Extramarinor. Scandin. 



in Oier, Valders etc. saltem usque iii Nordlanden ut ad Akers- 

 huus: Ch. R.). P'orte huc L. mucronata B. Esm. e Westfinmar- 

 ken. — Dania »tota passim.» (0. Morch in Syn. Moll. Dan. 

 canalem ad Charlottenlund Sondremarken, stagnum ad Lunde- 

 huus et »multa aha loca» citavit; dicam vero me nullum speci- 

 men typicum in collectione formarum hujus generis e Dania di- 

 tissima amici H. Lynge detegere potuisse). — Fennia in palude 

 Valkeinen ad Kuopio, ad MuUinkoski prope Fredrikshamn, ad 

 Kyto in Esbo et Schliisselburg (Mus. Helsingf.). 



Var. diploa mh.: t, plus minusve aperte rimata, tenuis, sat 

 firma, flavido-cornea, nitidula, spira elongata, celeriter acuta, 

 anfr. 5, convexi, ultimus ventricosus, medio planatus, in- 

 fra brevissime elongatus, apert. oblongo-ovata, basi rotun- 

 data, margine colum. reflexo, substricto, exteriore leviter 

 curvato, medio rectiusculo; long. 24, lat. 14 — 15, ap. Ig. 

 15 — 16 mm. — Suecia in Skane (ad Stebag*: Hj. W.) et 

 Gotland (ad Kopparvik: V. L.). Kob. 1. Nacbtr. Fauna 

 Nass. Moll. 1886 t. 9. f. 4. 



Var. alata Sporleder (Kob. Icon. f. 1241): t. late ovalis, apert. 

 ampla, peristomate auriculatim dilatato, late limbato, sub- 

 reflexo, margine superiore horizontali; long. 18—20, lat. 13 

 — 14, ap. Ig. 15 mm. — Suecia in Ostergotland (Borghamn). 



Var. anderssoni Cl. (Malak. Blatt., 1878): t. tenuissima, fragihs, 

 striatula, spira mediocri, acuta, anfr. ult. inflatus, superne 

 forte dilatatus et transversus, apert. magna, margine ex- 

 teriore circulari, plica columellari lata; long. 14, lat. 11, 

 ap. Ig. 10, lat. 7 mm. — Suecia a prov. Medelpad septem- 

 trionem versus ad litora rnaris. — Fennia ad Getha Alan- 

 dise, ad Lofo in Esbo, in Korpo (Pensar), in litoribus mari- 

 nis (Mus. Helsingf.). 



Var. margaritacea W. (Sver. Moll., 1865): t. tenuissima et fra- 

 gillima, pellucida, flavescenti-cornea v. succinea, spira nunc 

 brevissima, nunc paullo producta, supra fortissime attenuata, 

 acuta, anfr. ultimus ventrosus, apert. magna, intus plus mi- 

 nusve margaritaceo-nitens, margine exteriore ab insertione 

 forte arcuato, columellari forte curvato, pariete convexo, in- 

 fra extus columellam acutam, contortam depresso; long. 16 — 

 21, lat. 11—16, ap. Ig. 11—16, lat. 9—10 mm. — Suecia in 

 Skane (Sabyholm), Blekinge (in Langasjo * ad Ronneby), 

 Smaland (ad Hofryd), Ostergotland (in Kilarpsjon ad Helge- 

 slatt). 



Var. auricula W. (Fauna Suecia^ 1873): t. perforata, ovata. 



