134 C.-A. Westerlund, 



demum subangiilatns ; apertnra satis obliqua, suljovalis; peristoma saîpius 

 simplex, acutum, interdum intus leviter albo-labiatum. Diam. 7 mm. 



Planorbis gredlcri E. A. ]5ii;lz in Tirols Laud- u. Siissw. Conch. II. Abtli. von V. M. 

 Gredler p. 9. (Ex. orig. e Tirolia benigne raisit rever. V. Gredler). 



Hah. In Suecia in Funnäsdalssjün prov. Herjedalen (dr. V. Sö- 

 derlund!!); ad Arjeploug etc. in Piteå Lappm. frequ. (E. Hemberg!!). In 

 Norvegia ad Christiania et ad Drammen (amie. R. Collet!!), ad Laur- 

 gaard in Gudbrandsdalen (0. Nordstedt!!), in par. Hof (0. S. Jensen!!). 



9. PLANOEBIS ROSSMÄSSLERI Aueesw. 



Testa corneo-lutescens, nitida, saipe sordide ferruginea obtecta, supra 

 concaviuscula, subtus umbilicato-concava, subtiliter transversim striata, inconspi- 

 cue clathrata; anfr. 4, celeriter accrescentes, teretes, non carinati; apertnra 

 subrotunda, parum obliqua; peristoma säipius albo-labiatum, lamella tenui 

 continuum. Diam. 5 — G mm. 



Planorhis rossmassleri Anerswald, Ad. Sclimidt Zeitschr. f. Malak. 18.51. p. 179. Ross- 

 mässler Iconogr. XVIII (18.59) p. 131. f. 962 (ex. typica, a beat. Kossmassler 

 ipso in loco oviginali ad Leipzig capta, coniraunicavit elariss. E. v. Martens). 



Planorbis albus Nord, et Nyl. pr. p. Pinl. Moll. (1856) p. 68. v. Wallenberg Luleå 

 Lapplands Moll, in Mai. Bl. V (1858) p. 114; De Moll. Lapp. Lui. (1858) p. 32. 



Hah. In Suecia boreali, ad Jörn etc. in Piteå Lappm. (E. 

 Hemberg!!); ad Qvickjock (anfr. 4, alt. ad ap. 1,8, diam. maj. 6, min. 5,2; 

 exempl. max. alt. ad ap. 2,3, diam. maj. 7,4, min. 6,2 mm.: Wallenb. 1. c; 

 ex. 2 ab eodem loco mihi benigne misit prof. Lovén) in Luleå Lappmark; 

 ad Karesuando in Torneå Lappmark (ex. 5 juniora amiciss. prof Lill- 

 jeborg raisit); ad Juckasjärvi et in Enare cepit celeb. Malm (ex. 4 mihi 

 donavit prof Lovén). 



10. PLANORBIS LIMOPHILUS Westerl. 



Testa depressa, supra centro concaviuscula, subtus late et profunde 

 coiicava, perspective umbilicata, corneo-lutescens, cum animale vivo pulchre 

 coccineo-rufa, glaberrima, nitidula, striata, subtilissime spiraliter lineata; anfr. 

 ö, parum celeriter accrescentes, teretes, ultimus demum depressiusculus, non 

 carinati, vel ultimus interdum linea tenuissima carinali cinctus; sutura utria- 

 que profunda; apertnra rotundata, ne quideui minime superne angulata, obli- 

 qua; peristoma acutum, simplex, fragile, margine exteriore producto, colu- 

 mellari valde sinuate. Diam. 5 mm. 



