86 C. A. Westerlund, Synopsis Molluscorum Extramarinor. Scandin. 



fra elongata; long. 9 — 11, lat. 5^2^ ap. loug. 7 — T^/o. lat. 4 

 mm. — Suecia ad Eonneby (in Herrstorpsjon), Goteborg 

 (in Qvillebacken), Jonkoping (in Lillsjou), Westergotland 

 (Mosseberg), Upland (ad Upsala et in Lenna sjo). — Fen- 

 nia in Aland ad Jomala, in amne Borga (Mus. Helsingf.) 

 et in Esbo-Lofo (K. M. L.). 

 Foi-ma costellata mh., t. dense costulata. — ■ Suecia ad Stock- 

 bolm (Nacka*, Carlberg: J. W.), in Sodermanland (in lacu 

 Sillen prope Charlottendal: A. d'A.) Dalarne (ad Hedemora) 

 et Jemtland (ad Pilgrimsstad : E. N.). 



Var. nilssoniana Cless. (Malak. Blatt., 1879) : t. ovata, solida, 

 sat crassa, ochracea ad fuscorufa, spira brevis, acuta, anfr. 

 3 — 3Y2, perconvexi, sutura profunda, apert. rotundato-ovata; 

 long. 10 — 11, lat. 5^2 — 6, ap. long. 6^3, lat. 4^2 mm. — 

 Sueciain Ostergotland (in lacu Takern), ad Stockholm (Norr- 

 tull: P. de L.), Upland (Upsala), Medelpad. — Dania in 

 Bornhohn. — S. ochracea W. pr. p. olim. 



Forma major long. 12 — 15, lat. 6—71/2, ap. long. 7 — 9, lat. 5—6 

 mm. • — Suecia in Gotland (Bunge). 



Var. mediolanensis Villa (Cat. Moll. Lomb., 1844): t. elongato- 

 ovata, firma, tenue striatula, perobliqua, spira brevis, anfr. 

 vix 3, convexi, ultimus ad sinistrum et antice ventrosus, 

 sutura profunda, antice subhorizontalis, columella concava; 

 long. 8—9, lat. 4^2, ap- long. 5—6, lat. SV^ wcn.. — Suecia 

 in Oland (ad Kohlstad prope Borgholm, sat frequens). 



Var. diphya W. (Fauna Binnenconch. V, 1885): t. tenuissima, 

 perobliqua, ad sinistrum perconvexa, spira albida, anfr. 

 ult. brunnescens, striatulus, a medio extus flavescens et 

 forte rugoso-plicatus, basi longe attenuatus, apert. intus 

 margaritacea, marginibus callo albo conjunctis; long. ad 

 12, lat. 6V2' ap. long. 9, lat. 5 mm. — Suecia in Skane (ad 

 Sjobo: J. W.) et ad Stockholm (Norra Brunnsviken * prope 

 E,oslagstull: J, W., ins. Tegelon: P. de L.). 



^^ar. venti-icosa Pic. (Moll. Somme, 1840): t. elongato-ovalis, 

 spira dimidiam aperturae attingente, anfr. convexi, ultimus 

 supra aperturam ventrosus, apertura superne acuta, infra 

 dilatata et elongata, columella arcuatula. — Suecia in 

 Lappland (Muoniovaara). — Fennia (Lapponia Possica ad 

 Kusraka: Mus. Heisingf.). 



Var. j^ro^nnqua Baud. (Journ. Conch., 1877) : t. elongata, anfr. 

 ultimus validus, ventrosus, spira brevis, contorta, apertura 

 magna, elongato-ovata, plus quam -/3 longit. totius; long. 

 12 — 22. lat. 7 — 12 mm. — Suecia ad Westeras. 



