232 ARION CIRCUMSCRIPTUS. 
Var. neustriaeca Mabille, Rev. et Mag. Zool., Apl. 1868, p. 138. 
Avion neustriacus Mabille, op. cit. 
Arion hortensis (3 alpicola Férussac, Tabl., 1821, p. 18, pl. 8a, f. 3. 
Arion circumscriptus var. flavescens Collinge, Conch., 1892, p. 27. 
Avion nilssoni Pollonera, Sp. nuoy. Arion Europ., 1887, p. 19, ff. 31, 34. 
Prolepis hortensis Malm, Limac. Scand., 1868, pl. 2, f. 5. 
ANIMAL reddish-grey, lateral fascia blackish, dorsal keel sometimes persistent 
to adult life ; foot-fringe without distinct lineolation. 
This is the var. subfusca of Roebuck and the var. flavescens of Collinge, who 
describes the form as not uncommon. It is probably the var. a/picola of Férussac. 
The Arion nilssoni of Pollonera, is described as possessing a yellowish foot-fringe 
and as exuding a yellowish mucus. 
The sub-var. flaveseens is light brownish-yellow, with dark lateral band, and 
no perceptible lineoles, the yellow supra-pedal zone distinct. 
The sub-var. nilssoni is yellowish-grey with cinereous banding, sides paler. 
ENGLAND AND WALES. 
Cornwall W.—Penmon, Falmouth, Apl. 1884 ! Herbert Fox. 
Cornwall E.—Garden bank, St. Columb, May 1885 ! W. Vinson. 
Middlesex—Churchyard Bottom Wood, Highgate, Apl. 1889 ! H. Wallis Kew. 
Warwick—Ingon Grange, Stratford-on-Avon, Sept. 1884 ! R. J. Attye. 
Stafford—Abundant about Cheadle, April 1886! F. B. Webb. 
Merioneth—Hills above Barmouth, and Torrent Walk, Dolgelly, Aug. 1884 ! 
J. Hopkinson. 
Leicester and Rutland—Hathern, Sept. 1884 ! C. T. Musson. 
Notts.—Wollaton, Nov. 1884 ! and Worksop, April 1884 ! C. T. Musson. 
Cheshire—Bowdon and Carrington, Dee. 1884! J. G. Milne. 
York S.E.—Millington near Pocklington, April 1885 ! W. Denison Roebuck. 
York N.E.—Alundant in Wilton Wood, May 1887 ! W. Denison Roebuck. 
York S.W.—Holimfirth, Jan. 1885 ! H. E. Craven. 
York Mid W.—Aneram, Nidderdale ! at Starbotton ! and at an alt. of 900 feet 
on Buckden Pike, May 1886 ! W. Denison Roebuck. 
Lancashire S.—Sub-v. flavescens, Knowsley, 1893 (Collinge, J. of M., 1893, p. 148). 
Cheviotland—Tweedmouth, Dec. 1888 ! Rev. Dr. MeMurtrie. 
SCOTLAND. 
Fife and Kinross—Sub-v. flavescens, St. Andrews (Collinge, J. of M., 1892, p. 27). 
CONTINENTAL DISTRIBUTION. 
France—Under stones at Sevres, Bellevue, and Charenton, Seine; also in the 
departments of the Aisne and Oise. 
Switzerland—Sub-var. a/picola, the Alps (Charpentier t. Moquin-Tandon). 
Italy—Rivarossa, Piedmont (Pollonera, op. cit. ). 
Austro-Hungary—Sub-var. «lpicola, Tatra in Galicia (Dybowski t. Jachno). 
Simroth describes a var. with orange-red dorsum and paler sides from Graz in Styria. 
Sweden—Sub-var. nilssoni, South Sweden (Pollonera, op. cit.). 
Var. misera Pollonera, Spec. nuoy. Arion Europ., 1887, p. 24. 
Arion bourguignati var. misery Pollonera, l.c. 
ANIMAL whitish, or tinged with grey, with usual banding pale, and indistinct 
lineolation. 
This sub-albine form is practically identical with the form named pallida by 
Mr. Roebuck. 
ENGLAND AND WALES. 
Carnarvon—Sub-var. pallida, Conway Castle, July 1883 ! W. Denison Roebuck. 
Notts.—Sub-v. pallida, railway embankment, Colwick, Sep. 1884 !C. T. Musson. 
York S.W.—Sub-var. pallida, Penistone, Nov. 1889 ! Lionel E. Adams. 
York Mid W.—Sub-var. pallida, Buckden Pike, at an alt. of 1,100 feet, May 
1886 ! W. Denison Roebuek. 
SCOTLAND. 
Roxburgh—Sub-var. pallida, Langlee near Galashiels, Sep. 1904 ! J. Roseburgh. 
IRELAND. 
Queen’s Co.—Sub-var. pallida, Maryborough, Oct. 1904 ! A. G. Stuart. 
CONTINENTAL DISTRIBUTION. 
Italy—Var. wiisera, Valley of Aosta and Valley of Great St. Bernard, Piedmont. 
