Acta Societatis pro Fauna et Flora Fennica, XIII, n:o 7. 158 



Dania tota (H. Lynge). — Fennia in flnm. Ylilne, ad Helsing- 

 fors, Luhanko, Saiiminki, Rantasalmi, Kuopio (]\Ius. Helsingf.). 

 Var. fedderse.ni VV. (Fauna Binnenconch., VII, 1H90): c. tan- 

 tum sub umbones convexiuscula, de coetero forte com- 

 pressa, marginibus acutis, tenue et anguste striata, umbo- 

 nes magni, planoconvex!, paullo laterales, infra abscissi; 

 long. 3, alt. 2^/4, cr. 1^/^ mm, — Islandia. 



P. lilljeborgi CI. (Malak. Blatt., 1886). C. oblique ovalis, trian- 

 gularis, inflato-ventricosa, irregulariter striata, sulcis et in- 

 cisuris pluribus, antice acuminato-rotundata, margine brevi 

 declivi, postice brevissima, truncato-rotundata, margine 

 dorsali convexo, ventrali forte arcuato; umbones inflati, 

 late rotundati, valde prominentes, seepe superne late mamil- 

 lati. Long. 4, alt. 3, cr. 2^2 mm. 

 Hah. Siiecia in Jemtland (Froson: E. N.). — Norvegia 



praeeipue borealis multis locis inter Circulum polarem et Mare 



glaciale. — Islandia. — Fennia in Lapp. ross. ad Olenitsa 



(Mus. Helsingf.). 



Var. transversale CI. 1. c: c. obliquior, antice magis attenuata 

 et acuminata, postice fortius truncata, margine ventrali 

 longiore, antice altius ascendente, umbonibus tumido-infla- 

 tis, latioribus et magis prominentibus. — Norv. Troldwand 

 in Trondenses. 



Var, lioyeri CI, 1, C: c. ovata, forte striata, antice abbreviata, 

 obtusa. postice breve rotundata, superne angulata. — Norv. 

 in ins. Tromso et Heno. 



tP. lindstromi CI. (Ofvers, K. Sv. Vet. Ak. Forh., 1888), C. ob- 

 lique ovata, valde insequilatera, ventricosa, sat regulariter 

 striatula, sulcis pluribus (4 — 6) profundioribus priTcdita, 

 antice producta, paullo angustata, late rotundata, postice 

 forte rotundata, margo dorsalis convexus, ventral is forte 

 arcuatus, umbones rotundati, prominentes. Long. 4, alt. 3, 

 cr, 272 — 2"*/5 mm. 



HaJ). Siiecia, suhfossilis in stratis postglacialibus ad Al- 

 narp et Hofgard in prov. Skane. 



**^ C. oblongo-ovata, striatula v. striata, antice paullo angu- 

 stata, rotundata, postice hrevis, late rotundata, umhoni- 

 bus ad partem posteriorem approximatis. 



P. fontinale C. Pfr. (Naturgesch,, 1821), C. ovata, inflato-ventri- 

 cosa, tenuis, nitida, striatula, antice paullo elongata, ro- 



