94 G. A. Westerlund, Synopsis MoUuscorum Extramarinor. Scandin. 



(ut ad Birkerod, Juelsborg, Juulsso pr. Silkesborg, Hojby, 

 Viborg). 



Var. nordmanni W. (Nachr. blatt Mai. Ges., 1894): t. non ri- 

 mata, rotundato-ovata, irregulariter striata, cornea, tenuis 

 at solida, spira brevissima, late conica, apice breviter acu- 

 minata, anfr. 5, ult. maximam testte partem occupans, ven- 

 trosus, sutnra usque ad apicem horizontalis, apert. late 

 ovata, margine exteriore ab insertione forte arcuato, colu- 

 mellari curvato, pariete brevi, convexo; long. 25, lat. 20, 

 ap. long. 20, spira long. 7 mm. — Fennia ad Walamo * 

 (A. V. Nordmann) et ad Pyhajarvi (Mus. Helsingf.). 



Var. media Hartm. i8M (Kob. Iconogr. f. 1235): t. firma, cor- 

 nea V. rufescens, Isevigata, spira quam apertura brevior, 

 conico-acuminata, anfr. ult. sat ventrosus, non angulatus, 

 apert. infra rotundatus, margine exter. ab insertione regu- 

 lariter arcuatulo-descendente, columella incrassata, forte 

 contorta; long. 35, lat. 20, ap. long. 25, spira long. 10 mm. 



— Suecia in Skane (Ringsjon). Certe etiam in aliis locis. 

 Bene observandum est banc formam in lacu Ringsjon eo- 

 dem loco ac et promiscue cum forma omnino contraria, 

 sc. maxime gracillima var. raphidiae, occurrere. 



Var. alata W. (Expose crit., 1871): t. magna, flavescens v. 

 pallide cornea, spira brevis, acuta, anfr. ult. ventricoso- 

 ampliatus, superne obtuse angulatus, apert. amplissima, 

 intus splendida, obscurior, peristoma auriculatim dilata- 

 tum, margine exter. superne horizontali, columellari infra 

 extenso; long. 55, lat. 29—33, ap. long. 33—35, lat. 23 mm. 



— Suecia in Smaland (in lacu Moen * ad Degla). — Fen- 

 nia ad Harjula pr. Kuopio (K. M. L.). 



Var. bottnica CI. (Malak. Blatt., 1878): t. late rimata v. umbili- 

 cata, tenuis at firma, striata, ssepius lineis spiralibus ele- 

 vatis, cinereo-flavescens, spira angusta, subscalaris, anfr. 

 ult. subventrosus, supra sat transversalis, apert, elongata, 

 sat angusta, margine exter. medio substricto, columellari 

 rectiusculo, superne late reflexo; long. 18—23, lat. 10 — 13, 

 ap. long. 9—13, lat. 5—8 mm. — Suecia et Fennia ad et 

 prope litora Sinus Bottnici. 



Var. baltica Lindstr. (Gotl. nutida moll., 1868): t. rimata, te- 

 nuis at firma, ovata, acuta, pallide fulvo-brunnea, anfr. 5 

 —6, convexiusculi, ult. ventrosus, apert. magna, margine 

 exter. forte arcuato, columellari infra arcuato, superne 

 late reflexo; long. 22—24, lat. 12, ap. long. 15—16, lat. 8 

 mm. (long. 30, ap. 16, sp. 16; 30—17 v. 20,-10 mm). — 



