182 ARION ATER. 
Algeria—Arion rufus is recorded by Aucapitaine as rare on the trunks of old fig 
trees in spring, at Thagnemoun’th-ilvaddaden, also at Beni Raten, and on the road 
to Medeah. ‘The examples are more probably A. subfuscus or some allied species. 
Azores—The A. rufus recorded by Morelet is according to Simroth A. lusitanicus. 
Var. succinea Miiller, Verm. Hist., 1774, p. 7, no. 203. 
Limax succineus Muller, op. cit. 
Limax luteus Razoumowsky, Hist. Nat. Jorat, 1789, p. 269. 
Avion empiricorum var. flavescens Feér., Tabl., Syst., 1819, p. 18. 
Arion melanocephalus Fér., op. cit. 
Arion empiricorum schranckit Kalenicz., Bull. Mose., 1851, p. 114. 
Arion rufus § succineus Moq.-Tand., Hist. Moll. France, 1895, ii., p. 10, pl. 1, f. 22. 
Arion rufus var. aurantia Baudon, Nouv. Cat. Moll. Oise, 1862. 
Avion rufus var. livida Colb., Ann. Soc. Mal. Belg., 1865, p. 32. 
Arion ater var. palliescens Williams, Shell Collectors’ Handbook, 1888, p. 85. 
ANIMAL yellow or yellowish, foot-fringe usually orange or red. 
Miiller’s original description is “ rufo fuseus vel succini coloris,” bat the name is 
here restricted to the yellow forms. 
This variation is usually found only in young or half-grown individuals, but 
oceasionally this juvenile colouration persists to adult life. 
The sub-var. melanoeephala differs from the type by the head and tentacles 
being obseure or blackish. 
The sub-var. aurantia has the body of an orange colour. 
The sub-var. livida has the body of a livid yellow colour, tinged greenish-grey 
especially on the back, foot-fringe orange, sole yellowish-grey. 
The sub-var. palleseens Williams, is pale yellow and is the var. liteo-pallescens 
of Coekerell and in part the var. padlescens of Moquin-Tandon. 
ENGLAND AND -WALES. 
Cornwall W.—Reweean near St. Columb, May 1885! W. Vinson. 
Devon N.—Var. succinea and sub-var. livida, Belstone, Okehampton, Sept. 
1904 ! Miss Daisy Mason. 
Somerset S.—Bridegwater, Sept. 1884 ! W. Vinson. 
Hants. S.—Charlton, July 1884! W. Jeffery. Sub-var. melanocephala, Bitterne, 
July 1884! Rev. H. P. Fitzgerald. 
Hants. N.—Sub-var. /ufeo-pallescens, Preston Candover, Oct., 1886! Rey. H. P. 
Fitzgerald. 
Surrey—Sub-var. melanocephala, nr. Warlinghamn, July 1883, T. D. A. Cockerell. 
Essex N.—Sub-var. /ivida, Manningtree, July 1904! Rev. Proctor Benwell. 
Middlesex—Churchyard Bottom Wood, Highgate, April 1889! H. W. Kew. 
Berks.—Sub-var. melanocephala, Maidenhead, Lionel E. Adams. 
Gloucester W.—Stroud, Oct. 1883! E. J. Elliott. 
Hereford—Sub-var. livida, Ross, Sept. 1904! W. Blake. 
Salop—Sub-var. /ufeo-pallescens, Oswestry, June 1885 ! Baker Hudson. 
Glamorgan—Parkmill, Gower, 1901, H. Rowland Wakefield. 
Pembroke-——Near Pembroke, June 1885! Mrs. Trayler. 
Cardigan—Garden, Aberayron, June 1888! Miss Maddy. 
Merioneth—Sub-var. /uteo-pallescens, common in the county, Lionel E. Adams. 
Carnarvon—Bettws-y-Coed, Aug. 1865, C. Ashford. Sub-var. melanocephala, 
Conway Castle, June 1888! W. Whitwell. 
Lincoln N.—Haugham Wood near Louth, April 1886! W. Denison Roebuck. 
Notts.—Meadows below Highfield House, Nottingham, E. J. Lowe, 1885. Sub- 
var. melanocephala, Cresswell Crags and Pleasley Vale, April 1884! C. T. Musson. 
Cheshire—Ringway near Bowdon, July 1885! J. G. Milne. Sub-var. Zuteo- 
pullescens, Romiley, Oct. 1886! C, Oldham. 
Lancashire S.—Sub-var. Juteo-pallescens, Whalley and Farington, June 1890 ! 
W. H. Heathcote. 
York N.E.—Farwath Bridge, Aug. 1886! and Skelton Beck Valley, Saltburn, 
also sub-var. duteo-pallescens, Wilton Wood, May 1887! W. Denison Roebuck. 
York Mid W.—Meanwood Wood, Leeds, Aug. 1882! W. Denison Roebuck. 
Sub-var. luteo-pallescens, Armley, April 1890! Lionel E. Adams. 
York N.W.—Satron and Angram, July 1884! also Storthwaite in Arkengarth- 
dale, Aug. 1885! W. Denison Roebuck. 
Durham—Sub-var. aurantia, Durham ! W. D. Roebuck, Nat., July 1889, p. 212. 
Sub-var. /uteo-pallescens, Middleton-in-Teesdale, Aug. 1889! Rev. E. P. Knubley. 
Westmorland—Sub-var. melanocephala, Orrest Head, June 1902 ! C. Oldham. 
Cumberland—Sub-var. Jivida, Brigham, Cockermouth, Sep. 1904 ! Mrs. Robinson. 
Isle of Man—Port Erin and Ramsey, 1881, L. E. Adams. Sub-var. melanocephala, 
Douglas, Sep. 1902! F. Taylor. Sub-var. /uteo-pallescens, Peel, Aug. 1894, R. Cairns. 
