148 6'. A. Westerhmd, Synopsis MoUuscorum Extramarinor. Scandin. 



lis, non angulata, antice paullisper angustata, postice late 



rotundata, superne ad mitrellas ventricosa, dein convexa, 



ad margines compressa, acuta, tenuis, corneocinerea v. 



infra flavescens, striata, nitens, margine supero leviter, in- 



fero sat forte arcuato ; umbones convexi, humiles, mitrellis 



magnis v. maximis, horizontalibus v. extus dilatatis, forte 



striatis. Long. 4^2, alt. 3^2' cr. 2^2 mm. 



Hah. Suecia ad Ronneby (in stagno parvo pone viam ad 



Kalhnge '••) et ad Stockhohii (Gangsatra: J. W.). Ceteroquin ha^c 



species in Bohemia, Germania et Britannia, ubi tamen pro S. 



ryckholti sumitur. 



ff Umbones non infiati. superne inmrvi, mitrellis intus oblique 

 versis. 



S. brochonianum Bourg. (Mon. Sphser. Fr., 1854). G. oblongo- 

 ovata, suboequilatera, angulata, tenuissima, superne ad um- 

 bones ventrosula, deinde celeriter et forte complanata, ad 

 margines acutissima, corneocinerea, fascia et marginibus 

 ssepe palHdis, antice deorsum angustata et producta, po- 

 stice lata, obhque truncata; umbones sursum celeriter an- 

 gustati, mitrelhs parvis. Long. 10, ah. 8, or. 4 mm. 

 Hah. Suecia ad Goteborg (in canah quadam in urbe, nec 



non in rivulo Qvillebacken: C. calyculata var. A. Malm Goteb. 



Soc. Handl. III, 1855 cum fig.). 



Var. steini A. Scbm. (Zeitschr. f. Malak., 1858): c. rotundior, 

 ventrico.sior, inferne compressa, superne minus distincte 

 angulata, margine superiore curvatulo et mitrellis minimis. 

 pars anterior conclise multo minus producta; long. 7, alt. 

 6 — 7, cr. 4 mm. — Forma major, 12 — 10 — 7 mm. — Suecia 

 passim a Skane usque in Dalarne (ad Sater). — Norv. meri- 

 dionalis. — Dania in Jylland (Asmilds Have ad Viborg : 

 C. M. Poulsen, Horsens: H. Lynge); certe etiam in insu- 

 lis. — Fennia, ut ad ostium flum. Uleaelf, Frugard, Ori- 

 mattila, Ingo et ad Finnby in Aland (Mus. Helsingf). 



S. ryckholti Norm. (Note nouv. Cycl., 1844, Cyclas) var. dani- 

 cum CI. ap. W. (Fauna Suec, 1873). C. subtriangularis, 

 inicquilateralis, infra angulata, superne ventrosa, deinde 

 lente et leviter compressa, ad margines acuta, cinereo- 

 flavida v. coerulescens, tenue striata, antice forte declivis 



