154 C. A. Westerhmd, Synopsis Mollnscorum Extramariiior. Scancliii. 



tundata, margine supero arcuato, postice rotundata, ad 



basin obsolete angulata, margine ventrali curvato, umbo- 



nes lati, prominentes. Long. 4, alt. 2*/5, cr. 3 mm. 



Hah. Suecia meridionalis et media, saltem usque in Jemt- 



land (Froson: E. N.). — Norv. merid. & media vulgaris. — 



Dania passim. — Fennia in par. Sysma et Salmi, ad Nikola 



ad fl. Svir, ad Suma in Car. ross. (Mus. Helsingf.).' 



Var. acuminatum Cl. ap. W. (Fauna Suec, 1873): c. paruni ven- 

 tricosa, antice magis acuminata, postice truncatula, umbo- 

 nibus prominulis; long. Si/o, alt. 3, cr. 2 mm. — Suecia in 

 Skane (Lefrasjon) et Dalarne (Sater *). 



Var. flavescens Cl. (Mon. in Chemn. Conch. Cab., 1879): c. ven- 

 tricosissima, parte anteriore augustiore, umbonibus valde 

 prominentibus; long. i^/^, alt. 3^/5, cr. 8^5 nim. — Suecia 

 in Upland (ad fabricam Forsmark: P. de L.). 



P. cinereum Alder (Gat. suppl., 1837). C. elongato-ovalis, fere 

 medio alta, subsequilateralis, antice paullo longior et an- 

 gustior, rotundata, postice latius rotundata, ad vel infra 

 medium ventricosa, inferne, valvis clausis, compressa, acuta, 

 cinerea, ad marginem inferiorem albescens, tenuissime 

 striatula, marginibus omnibus arcuatis, angulis nullis; um- 

 bones prominentes, rotundati. Long. 4—6, alt. 3 — 4, cr. 

 2 — 3 mm. 



Hab. Dania in Sja:41and (ad Brondsholms-dal et specim. 



plur. e locis ignotis: 0. Morch). 



P. pallidum Gass. (Descr. Pisid. Aquit., 1855). C. perobhqua, 

 ovata, subcuneiformis, supra medium valde ventricosa, sur- 

 sum breve, deorsum longe declivis, flavidocornea, flavohm- 

 bata, striata, nitida, antice late rotundato-attenuata, mar- 

 gine super. forte declivi, arcuatulo, postice brevis, rotun- 

 data, margine ventrali arcuato; umbones valde prominen- 

 tes, attenuato-rotundati; hgamentum perdistinctum. Long. 

 4, alt. 31/3, cr. 2V2 mm. (5-4—3 mm). 

 Hah. Siiecia prope Lund. — Norv. in Bondtjern in Asker. 



— Dania in Bornhohn. 



P. loveni Gl. (MolL Faun. Oester.-Ung., 1890). C. obHque ro- 

 tundato-ovata, ventricosissima, non angulata, flavescens, zo- 



