Acta Societatis pro Fauna et Flora Fennica, XIII, N:o 7. 178 



ventrali arcuatiilo, postice longe recteque ascendente. Long. 

 100—120, alt. 55—65, cr. 40—45 mm. 



Hal. Dania in ins. SjaBlland (in Emdrupso: H. S.) et 

 Fyen (ad Brahe-Trolleberg: A. F.). — Verosimiliter hue pertinet 

 A. cellensis var, 3. « minor (»G. incrassata, ventricosa, sordide 

 olivacea, nates siepe ferruginei, liganientum validissimum; long. 

 112, alt. 60 mm.») Morch in Syn. moll. Danise (in lacubus 

 Gjentofteso, Damhunssoen et Bavelseso inventa). 



(Q^ C. mediocris, tenuis^ fragilis, complanata, breve ovalis, luteo- 

 virescens, pars postica cluplo longior, margo dorsalis suhhori- 

 zonfalis, suhrecfus, ventralis totus regidariter arcuahis; area 

 alta, valde compressa ; timhones plane depressi. 



A. sturmi Bourg. (Moll. Aceph. I, 1881). C. subrecta, late ovata 

 vel irregiilariter rhomboidea, laevigata, nitida, luteoviridis, 

 tenue radiata, ad umbones cinerascens vel ferruginea, an- 

 tice lata, rotundata, superne angulata, margine posteriore 

 recto, celeriter descendente, postice in rostrum breve, la- 

 tum, medianum compressa, ligamentum fere inconspicuum. 

 Long. 70—90, alt. 43—59, cr. 26 mm. (L. 106, a. 50 mm.: 

 A. cellensis v. intermedia Morch). 



Hal). Siiecia in BleKinge (in lacu Tresjon prope Ronneby: 



Hj. W.) nee non in et circa Malaren (J. \V.). — Dania in ;>So- 



erne» ad Kjobenhavn, Ladegaardsaaen, Leersoen et Lundehuus- 



soen. 



{7} C. late ovalis-subrhomhea, ventricosa., antice prolong ata., postice 

 duplo longior, margine dorsali fere recto, ascendente. ventrali 

 plus minus arcuato; area magna, alta, forte angulata; umho- 

 nes tumidi. 



A. piscinalis Nilss. (Hist. Moll. Su. 1822) pr. p. C. crassiuscula, 

 pallide lutea, superne cinerea, natibus rubris, confertim 

 viride radiata, striata et obseurius zonata, antice rotun- 

 data, superne angulata, margine posteriore plus minus 

 eoncavo, ventrali fere regulariter et forte arcuato, postice 

 in rostrum submedianum, subeonicum, obtuso-truncatum 

 produeta. Long. 100, alt. 60, cr. 30 mm. 



Hal). Suecia a Skane (locus originalis est Dagstorp in fos- 

 sis turfosis), ad Stockholm (in Rastadsjon: Hj. \V.). — Dania 



