158 C. A. Westerlund, Synopsis MoUuscorum Extramarinor. Scandin. 



Hah. Siiecia per totum regnuni usque in Lapponiam quam 

 maxime septentrionalem. — Xorv. saltern usque in Nordlanden 

 vulgaris. — Dania tota vulgaris. — Femiia meridionalis et 

 media. 



Var. mognificum Cless. ap. West. (Fauna Suec. 1873): c. major, 

 magis ovata, inflata, parte anteriore magis elongata, nm- 

 bonibus maximis. rotundatis, valde prominentibus; long. 

 5, alt. 4, cr. S^/2 mm. — Suecia ad Goteborg *, ad Stock- 

 holm (Haga: Hj. WO et in Upland (ad Harg). — Norv. ad 

 Bergen. 



•>^V'Fj^i'. fragile Cless. ap. West. 1. c: c. parva, tenerrima, ventri- 

 ^' t^\^^\ cosissima, nitida, striata; long. 3^5, alt. 3, cr. 2^/-^q mm. 

 ^ — Suecia ad Ronnebv. 



Var, soUdum Cless. ap. West. 1. c: c. solida, flavida, tenuiter 

 striata, splendida; long. 3%. alt. 3, cr. 2V2 nam. — Norve- 

 gia ad Bergen. — Dania in Sjaelland (Fuirendal, Holte, 

 Ellemose ad Valdbj-gaard, Silketorp). 



Var. esmarkianum Cless. (Malak. Blatt. 1883): c. magna, tenuis- 

 sima, forte irregulariterque striata, diasomatibus pluribus 

 magnis, parte anteriore angustato, rotundato, posteriore 

 abbreviato, rotundato. umbonibus latis, inflatis. — I^orv. 

 ad Kristiania, Herstad in Hof et Jarlsberg. 



'•'P. personatum Malm (Goteb. Samh. Handl. 1853). C. tenuis- 

 sime striata, sulcis profundioribus 1 — 5 prsedita, nitidis- 

 sima, compressiuscula, supra medium maxime ventrico- 

 sula (valvis leviter et sat regulariter convexis, deorsum 

 parum compressis, angulum obtuse-acutum formantibus); 

 umbones subprominuli. Long. 8-/3, alt. 375, cr. 2^3 mm. 



Hab. Suecia ad Goteborg (in rivulo ad Hofas), Ronneby 

 etc. — Norvegia ad Romerige. — Dania in Sjeelland (Rorup: 

 H. L.), Jylland (Visborg, Norreaa). Islandia. — Femiia in Solo- 

 vetsk (Mus. Helsingfors). 



P. pusillum Gmel. (Syst. nat., XIII 1788, Teliina). C. orbiculato- 

 ovalis, striatula, infra striis paucis profundioribus, vix ni- 

 tidula, sat solida, antice late rotundata, compressiuscula, 

 valvis regulariter convexiuseulis, ad marginem ventralem 

 angulum subacutum formantibus; umbones lati, rotundati, 

 prominuli. Long. 372» alt. 3, cr. 274 mm. 

 Hah. Suecia ad Goteborg multis locis, Rohuslan (in pa- 



