Mollusques terrestres et d'eau douce. 133 



pressus, angnlato-carinatiis ; apertura rotundato-subovalis, in junioiibus ovali- 

 reniforiuis. Diam. 5 — 6 mm. 



Planorbis draparnaldi Jeffreys in Liiui. Soc. Trans. XVI (1830) p. 380; lîrit. Conrh. 

 I (1862) p. 84 (ex exempl. oiig. ab auctore ipso missis!). Möich Svii. Moll. 

 Dan. (1864) p. 53 (sptc. juniora ex exempl. origin.). Westerland Sv. Moll. 

 (1865) p. 105; Coll. Typ. Moü. Su. (1868) n:o 96"*. 



Hab. In Suecia i» Kefling-ea prope Lund et in pahule jiixta ur- 

 bem, occidentem versus, prov. Slcåne; in lacu Herrstorpssjün, in tbssa 

 prope Ronneby et in rivo ad Möllenäs par. Hoby prov. Bl elvi age inveni; 

 in Ljungstorps göl par. Rinna prov. Östergötland cepit et ruisit beat. 

 E. V. Goes. In Norvegia in Jsederen (dar. H. Friele, ex specim.) 



PLANOllBIS 'DEFORMIS Hartm. 



Testa solidula, corneo-fusca, transverse dense et spiraliter rainutis- 

 sime striata, supra et subtus medio subœqnaliter concavinscula; aiifr. (4-^) 5, 

 ultiraus vix dilatatus, non deflexus, utrinque plano-concaviusculus , medio an- 

 gulato-carinatus (raro membranaceo-carinatus), anfr. primi couvexi, subtere- 

 tes, sutura profunda distineti; apertura cordato-ovalis, obliqua. Diam. 5 mm. 



Gyraidns defwniis Hartmann Enl- u. Siissw. Gasterop. Sehn. (1844) p. 95. 



Hab. In Suecia ad Ronneby (in fossis ad amnera) prov. Blekinge 

 copiose (C. A. W.); ad Hjclinslund prov. Skåne (J. Lindahl!!); ad Carl- 

 stad prov. Wermland (C. Linroth!!); in Olofsfors prov. Westraanland 

 (C. H. Johanson!!). — In lacu Bodensee ad Fredricbshafen in. Helvetia 

 celeberr. E. V. Maktens Planorbem cepit et mibi 2 exempl. sub nomine PL 

 deformis benigne misit, quem pro specie optime distincta liabeo et cui no- 

 raen PL cavatiim propono. Diagn. Testa solida, snbcrassa, pallide cornea 

 vel albida, transversim ruguloso-striata, lineis spiralibus ornnino destituta, 

 supra convexiuscula, subtus concava mit late et profunde wnbilicata; anfr. 

 4|, celeriter accrescentes, ultimus latus, depressus, medio angulatus, sub- 

 carinatus, utrinque aîque plano-convexiusculus , ad aperturam deflexus; aper- 

 tura perobliqua, ovali-rotundata; peristoma simplex, continuum, affixum. 

 Diam. 7 mm. 



PLANOEBIS 'GREDLEEI E. A. Bielz. 



Testa solida, corneo-lutescens vel pallide cornea, subnitida, sfepe sordide 

 ferruginea vel fusca obtecta, supra concavinscula, subtus umbilicato-concava, 

 subtiliter et conforte transversim striata, striis spiralibus subtilissimis cla- 

 tbrata; anfr. A\. celeriter accrescentes, primi teretes, ultimus depresso-teres, 



