110 0. A. Wesferlund, Synopsis Molluscorum Extramarinor. Scandin. 



torta, anfr. 5, superi lente accrescentes, perconvexi, ulti- 

 mus leviter convexus, penultimo tantum Va longior, liic 

 antice et postice, e latere visus, seque convexus, sutura 

 perobliqua, apert. ovalis, margine colum. dilatato; long. 

 5—6, lat. 2—21/3 mm. — Suecia in Jemtland et in Lapp- 

 land ad arcum polarem. — Norv. in Nordland (in valle 

 Vefsin: Cli. E.). 



Var. minima Colb. (Mater. Faune Moll. Belg., 1859): t. minima, 

 rufescenti-cornea, nitida, spira acute conica, anfr. 5, con- 

 vexi, sutura profunda, ultimus ventrosus, penultimo duplo 

 longior, hie antice (supra aperturam) valde convexus, po- 

 stice subrecte constrictus, apert. rotundato-ovata; long. 5, 

 lat. 3, ap, Ig. 27.2 mm. — Suecia in Skane (ad Lund), Da- 

 larne (ad Norrby par. Hedemora), ad Upsala, Ostersund 

 (E. N.) et Pitea. — Fennia ad Eantasalmi (Mus. Helsingf.). 



Forma gracilis fere cylindraceo-oblonga, acuta, apert. oblonga; 

 long. 6, lat. 3 mm. — Suecia in Blekinge (Ronneby) et 

 Ostergotland (ad Nyby). Var. microstoma W. olim. 



Subfam. Pliysina, 



T. miistrorsa, ovalis v. ohionga, nii'ida. Animal tenfa- 

 cnlis long is setifonnihus. 



Gen. Physa Drap. 



1. Bulinus AdanS' T. ovalis, ampullacea, spira brevi, obtusa, 

 anfractus 4, ultimus ventrosus, apertura ovalis. (Animal 

 margine pallii supra testam reflexo, 3 — 7-digltatoJ. 



Ph. fontinalis Lin. (Syst. Nat. X, 1758, Bulla). T. striatula. 



Hah. Suecia vulgaris usque in prov. Dalarne. — Norv. 

 meridionalis et media passim. — Dania vulgaris. — Fennia 

 meridionalis et media et ad litora Sinus Fennici (K. M. L.). 



Forma normalis, t. anguste ovalis, saepe fuscofulvida, spira 

 brevissima, apert. oblongo-ovalis, seepe lanceolata,. infra 

 elongata, angulata, margine columellari longo, subrecto; 

 long. 8, lat. 5 mm. (ex. max,) 



Forma typica, t. ovalis v. ovata, pallide fulva, spira obsoleta, 

 apert. ovato-oblonga, infra rotundata, sup erne augustata et 

 acuminata, margine columellari brevi, curvato; long. 6—8, 

 lat. 372—5 mm. 



Var. bulla Miill. (Verm. Hist. II, 1774, Planorbis): t. late ova- 

 lis, spira conico-convexa, prominens, obtusa, anfr. ultimus 



