ARION SUBFUSCUS. 203 



CONTIXENTAL DISTRIBUTION. 



Germany — Sub-var. campestris, Neu Biisacli, Alsace. Sub-var. bcettgeri, Bremen 

 (Pollonera, ArionidiP Reg. PaleArct. , 1890, p. 13). Sub-^■al■. Qitrina, Misdroy, WoUiii 

 Island, Pomeiania (Babor, J. of Mai., 1894, p. 45). 



France — In the elevated mountain woods of Puy-de-D6nie and Cantal (Bouillet, 

 I.e. ). Snb-var. nuilnlliana , in the Forest d'Orient in the Anbe. Sub-var. aurantiacn . 

 Savoy (Uumont & Mortillet, op. cit. ). Sub-var. nigricans, on nmshrooms, chiefly in 

 October, in the Forest of Hez, department of the Oise ; and Drouet has also found it 

 at Dijon, C6te d'Or. Sub-var. atripunctata, Mont Saxonnet, Savoy, at an alt. of 

 over 3,000 feet (Dum. & Mort. , op. cit.). Sub-var. campestris, Bellancourt and 

 Sevres, Seine. Sub-var. havayi, Brest in Finistere. 



Switzerland — Sub-var. campestris, St. Gall (Westerlund, op. cit.). 



Italy — Sub-var. atripunctata, on the Alps, also Piano di Formazza, Piedmont 

 (Pollonera, Arionidw Reg. Palearct.j 1890, p. 13). 



Norway — Elvanaes and Jarfjord (Esmark & Hoyer, Mai. Bl., 1886, p. 103). Sub- 

 vars. citrinn »,n<Xflava, Ringerige (Westerlund, I.e.). 



Svyeden — Sub-var. Icevis, Krokum in Jemtland. Sub-var. citrina, Ufvedskloster 

 in Scania, and in Blekinge. Sub-var. flava, Esperod in Scania, rarely in Smaland, 

 and in Blekinge (Westerlund, I.e.). 



Denmark— Sub-var. _^ai!f(, Copenhagen (Westerlund, I.e.). 



Russia — Snb-var. krynickii, in moist woodlands near Ivanovka in Sumy district. 

 Frequent in rainy weather by woodland roads, on Morchdla:, near Danilovka-Parva, 

 Kurysch, and Kvitkin in the district of Kharkov (Kaleniezenko, I.e.). 



Var. pegforarii Less. & Poll., Mon. Limac. Ital., 1882, p. 62. 



A rion pegorarii Less. & Poll. , op. cit. 



Arion stabilei Pollonera, Elencho Moll. Terr. Piem., 1885, p. 28. 



Arion pollonerw Pini, Nov. Malac, 1884, p. 42. 



Arion suh/uscus var. iransytvanus Simroth, Zeitschr. Wissensch. Zool., 1885, p. 284. 



Arion subfuscus var. alpestris Pollonera, Arionidse R^g. Paltiarct., 1890, p. 12. 



Animal quadrifasciate, showing dark subdorsal and lateral banding on each side. 



The var. pegorarii s.str., is dusky rufous, confusedly quadrifasciate; foot-fringe 

 dark grey, with black lineolations ; sole whitish and mucus yellow. According to 

 Pollonera, this form is also distinguished from the typical form by the presence of 

 an additional ectocone to the marginal teeth. 



The sub-var. stabilei is described as yellowish or orange, confusedly quadri- 

 fasciate ; foot-fringe with black lineolations. 



The sub-var. poUonePSe grows to a larger size (80 mill.) and is confusedly quad- 

 rifasciate, with pale yellow fringe, and conspicuous lineolation. 



The snb-var. transylvana is very darkly coloured and quadrifasciate. 



The sub-var. alpestris is yellow or orange ; dorsum more or less chestnut or 

 fuscous-black ; fascia blackish or chestnut coloured ; fringe yellow, lineolate with 



fuscous. 



CONTINENTAL DISTRIBUTION. 



Germany— Sub-var. alpestris (Pollonera, op. cit.). 



France— Sub-var. alpestris, north of France (Pollonera, op. cit.). 



Italy— Etrouble, valley of Aosta, Piedmont. Sub-var. pollonerce. Intra on Lake 

 Maggiore, Piedmont. Sub-var. alpiestris, Alps; sub-var. stabilei, Maccugnaga, Pied- 

 mont (Pollonera, op. cit.). 



Austro-Hung-ary— Sub-var. transylvana, Transylvania (Sinnoth, I.e.). 



Sweden— Malm records a quadrifasciate variety from Lulea-Lappmark, which 

 would perhaps be best placed under pegorarii. 



Geographical Distribution.— 4 r/o?» subfmcus lias a more extended 

 distribution than A . ater, as, in either its typical or in its aberrant forms its 

 range extends on all sides beyond that of the latter species, forming as it 

 were a fringe beyond the inhabited area of its congener. 



The distributional area comprises almost the whole of Europe, except the 

 south-eastern extremity, where Ariowkhc are practically deficient. 



It is recorded as inhabiting the British Isles, Germany, France, Belsiuni, 

 Spain, Portugal, Switzeriand, Northern Italy, Austro-Hungary, Russia, 



