Acta Societatis pro Fauna et Flora Fennica, XIII, n:o 7. 21 



De molluscis fennicis. 



WilJielm LiUjeborg in K. Sv. Vet. Ak. Handl. 1850 miil- 

 tas observationes graves de molluscis in et ad laeum Ladoga 

 tradidit. 



Alexander Theodor de Middendorff. 



Nat. 7s 1815 in Liflandia, doctor nied., prof. zool. in Kiew, 

 cura academiaB imp. in S:t Petersburg a. 1840 terras ad promon- 

 torium arcticum visitavit et 1842—1845 Sibiriam borealem inve- 

 stigavit, de quo itinere opus magnum laudatum, ad historiam 

 naturalem terrarum borealium maximi momenti, »Reise in den 

 aussersten Norden uud Osten Sibiriens (tomi 4, 1848 — 1876) edidit, 

 ab a. 1855 secretarius perpetuus acad. sc. in S:t Petersburg; de- 

 natus '^li 1894. In opere citato etiam faunam malacologicam Fen- 

 ni?e multis observationibus illustravit. 



Nils Adolf Erik Nordenskiold & Anders Edvin Nylander. 



Nordenskiold: uat. i^/ii 1832 iu Helsingfors Fennias, civ. 

 acad. 1849 et doctor phil. ib. 1857, prof. mineralogise in museo 

 regni in Stockholm 1858, annis 1858—1883 investigator illustris 

 terrarum quam maxime arctic. pluries has terras investigavit, 

 ibidem etiam hiemes transigit, prfecipue celehratus expeditioni- 

 bus 1868 usque ad 81° 39 lat. bor., 1870 ad Gronlandiam et 1878 

 — 1879 per fretum Behringense circa Asiam et Europam, scien- 

 tiis maximo lucro. 



Nylander: nat. 1831 in Uleaborg Fennia^ civ. acad. in Hel- 

 singfors 1848, cand. phys.-matem. 1853, doctor med. 1860, medi- 

 cus urbicus 1861, medicus provincialis in Kuopio 1870, denatus 

 23/. 1890. 



— Finlands Mollusker, Helsingfors 1856, pp. 110 c. 7 tab. 



Mollusca fennica usque ad id tempus cognita in hac opere de- 

 scripta sunt: Limax maximns (cinereus), agrestis, Vitrina peUiicida, Hya- 

 linia (Hx.) hammonis (pura), Connlus (Hx.) fulvus, Zonitoides (Hx.) nitidus 

 Arion ater, mut. draparnaudi (var. b), fuscus (subfuscus), Punctum (Hx.) 

 pygmceum, Patula (Hx.) ruderata, Helix harpa (aculeata), costata, pulchella, 

 lapicida, hispida, strigella, arbustorum, fruticum, schrenki, hortensis, Pupa 

 muscorum, edentula, atitivertigo, pygma^a, suhstriata., pusilla, Balea perversa, 

 Glausilia laminata, plicatula, bidentata (nigricans), Zua lubrica, Succ. pu- 

 tris, pfeifferi, Carychium (Auricula) minimum, Amphipeplea glutinosa, Lim- 

 ncea stagnalis, v. borealis (var. ^), v. livonica? (var. /h auricularia, ovata, 

 lagotis (vulgaris), v. balthica, peregra, palustris., v. fuscus, truncatula (mi- 

 nuta), Physa fontinalis, hypnorum, Plan. corneus, umbilicatus (marginatus), 

 vortex, sxnrorbis, contortus, albus, crista v. imbricatus (nautileus), Ancylus 



