Acta Societatis pro Fauna et Fiora Fennica, XIII, n:o 7. 177 



triincatum inframedianum producta; margo superior arcua- 

 tus, inferior totus subrectus, aliquando subretusus; nates 

 depressse (late eroste); margarita candidula, livide macu- 

 lata. Long. 95—110, alt. 50—57, cr. 27—35 mm. (W.). 

 Hah. Suecia in Jemtland (in Hornsjon ad Brunflo: E. N.) 



(10) C. oblongo-ovata, regulariter ventricosa adeoque scepius margi- 

 nibus ohtusis, pars fostica S^/^—S longior, rostro inframediano, 

 recto, late truncata, margine inferiore postice vix vel parum, 

 ascendente, crista humili, non angulata; vel rostro submediano, 

 crista altiore et angulata. 



A. rossmassleriana Dup. (Ess. moll. Gers 1843). C. sat obliqua, 

 elongato-ovata, sat tenuis, sat ventricosa, ad margines 

 sulcata, castanea, antice declive rotundata, postice plus 

 quam triplo longior, margo superior et posterior fere 

 regulariter in arcu longo ad rostrum subbasalem extenso 

 juncti, margo inferior usque ad finem subrectus, antice 

 ascendens; area humilis, crista prominula, non angulata. 

 Long. 100—120, alt, 50—60, cr. 30—40 mm. 

 Hah. Siiecia in Blekinge (in lacu ad Emmahult: Hj. W.) 



Sodermanland (ad Kuddinge.- Hj. W.), Stockholm (in Rastad- 



sjon: Hj. W.) et Dalarne (in lacu Honsan: C. G. A.). — Dania 



ad Skjoldnsesholm (H. L.). 



A. Iiixata Held (Isis 1837). C. obliqua, anguste sublanceolata, 

 Iccviuscuia, rufescenti-subnigra, nitidissima, regio umbonalis 

 sordide lutea, antice bene rotundata, sat alta, postice 2^4 

 longior, rostro rotundato-truncato, margo superior rectus, 

 posterior subrectus, celeriter descendens, inferior arcuatu- 

 lus, antice altius ascendens; area humilis, angulata. Long. 

 83, alt. 40, cr. 26 mm. (I. 134, a. 70 mm.: Morch). — 

 A. cellensis var. 3 Morch. 



Hah. Dania in Sjcelland (Hasle, Mose in Amager) et in 



Bornholm (ad Tonder). 



A. inornata Kstr. (Mon. in Chemn. Cab. 1852). C. obliqua, 

 anguste subelliptica, sat elongata, ventricosa, striatula, an 

 nulis distinctis, nitida, olivaceolutea v. virescens, ad um- 

 bones cinerascens, regio umbonalis ferruginea, viride ra- 



12 



