Acta Societatis pro Fauna et Flora Fennica, XIII, n:o 7. 179 



truncatum siibmedianum attenuata, margo dorsalis arcua- 

 tus, ventralis arcuatulus, hie postice ascendens; crista 

 longa, prominula; margarita antice albida, postice coerule- 

 scens. Long. 80—100, alt. 45—50, cr. 28 — 25 mm. 

 (West. 1. c.) 



Hah. Siiecia in Skane (ad Honsinge: S. Nilsson) et West- 

 manland (in lacii Hellingen: V. L.). 



A. fedderseni mh. C. subrhombea, solida, postice late rostrata; 

 margo ventralis antice ascendens, postice rectus; ligamen- 

 tum validissimum; vestigium distinctum dentium lateralium 

 sub ligamento. Long, 96, alt. 57 mm. (Morch sub nom. 

 A. incrassata3). 



Hah. Dania in Jylland (ad Rindsholm: A. Feddersen). 



A. oblonga Mill. (Mem. soc. agr. sc. Angers, 1883)? G. vix 

 obliqua, parum ventrosa, junior vix ventrosula, antice et 

 infra (ubi medio forte) compressa, olivaceobrunnea, rugis 

 levibus postice elatis, postice plus quam duplo longior, 

 in rostrum fere medianum, lente compressum, oblique 

 truncatum, biangulosum elongata, margo superior et infe- 

 rior leviter et subsequaliter curvati, ille angulo parvo v. 

 obsoleto in marginem posteriorem longum lente declivum 

 transiens, hie medio subretusus, postice subrecte sat alte 

 ad rostrum ascendens; area humilis, longa, umbones rufi, 

 depressi, leviter rugati v. decorticati. Long. 80, alt. 48, 

 cr. 23 mm. 



Hah. Dania in Ladegaardsaaen pr. Kjobenhavn (A. F.) et 

 ad Haraldsted so (H. L.) 



Cum uUo dubio amiciss Drouet ad banc speciem speci- 

 mina mea pro dolor juniora e loco danico citato duxit. Forte 

 majore fide ad A. oblongam Mill, pertinent specimina majora 

 (1. 110, a. 55, cr. 33 mm.) quae e lacu Takern in Ostergotland 

 Siiccice accepi. 



(11) C. obliqua^ margine dorsali subrecte et scepius alte ascendente. 

 a medio alto utrinqiie subcaqualiter attenuata, rostrum subme- 

 dianum, late truncatum, margo ventralis vix curvatus, utrinqiu 

 ascendens, pars posterior 3—2^/2 (.raro triplo) longior, area com 

 pressa, crista scepe alta, angulata. 



