94 LIMAX ARBORUM. 



This darkening of the body would seem to be a response to the character 

 of its habitat in the mountains or at the more extreme points of its geor 

 graphical range, as it has been noticed in the northern and north-western 

 parts of this country, in Transylvania, Portugal, and Italy. In the latter 

 country the transition from the ordinary glaucous form to the uniformly 

 dark variety can be traced as the mountains are ascended. 



VARIATIONS IN COLOUR AND MARKINGS OF ANIMAL. 



Var. flava "Weinland, Weichth. Schwab. Alb., 1876, p. 27. 



Body and shiet.d greenish-yellow. P'ormula 000 000. 



Though no remark is made in the description, it is probable that the lateral band- 

 ing on the shield and the inner bands on the body will be faintly perceptible. 



Wurtemburg — (Weinland, op. cit. ). 



Var. g-lauca Clarke, Ann. and Mag. Nat. Hist., 1843, p. 334, pi. 11. 



Animal of a pale bluisli-grey colour, with a glaucous-shade, showing a slightly 

 paler mid- dorsal line, margined on each side by an indistinct darker line; shield 

 witli a dark lateral band on each side. Formula 001 100. 



Surrey — A colony of the sea-green variety on an old oak in garden, Bramley hill, 

 Croydon (K. McKean, Proc. Croydon Soc, 1883, p. 147). 



Ireland — (B. J. Clarke, op. cit.). Killarney, Kerry, Sept. 1S84, Howard Bendall. 



Var. subrufa Le Comte, Bull. Soc. Mai. Belg., 1871, p. Ixv. 



Lhnajc arborutn var. subrufa Le Comte, op. cit. 



Ainaiia ntargiitaia. var. tnongianensis Fauhicci, Fauna Calabria, p. 1880. 

 Lehtnannia inarginata var. pallens Less. & Poll., Mon. Limac. Itai., 1882, p. 16, 

 I,ehmannia marginata var. requienii Poll., Boll. Mus. Zool. Torino, 1896, p. 1. 

 Limax flavus var. lineolatus Collinge, Zool., April 1890, p. 145. 



Body colour yellow or ochreous, inner bands bordering the slightly paler keel- 

 line ; SHIELD with darker lateral bands. Formula 001 100. 



The var. subpufa s.str. has a rufous-yellow ground with a greenish shade, caudal 

 end of body blackish; sliield bands dark grey. 



The sub-var. monglanensis is dull ochreous, fuscous-brown on the back, with 

 paler dorsal-line ; shield with black lateral bands, and clouded with fuscous-brown. 



The sub-var. requienii is ochraceous, darker dorsally, with yellowish dorsal-line; 

 shield with blackish lateral zones, and minutely spotted anteriorly and laterally. 



The sub-var. pallens is pale, with a paler dorsal-line ; shield faintly banded. 



The sub-var. lineolata is yellowish, with an ashy-grey dorsal-line and dark- 

 brown inner bands; shield with dark lateral bands; tentacles yellowish. 



Oxford — Sub-var. lineolata, Nelthorpe, near Banbury (Collinge, op. cit.). 



Norfolk E. — Sub-var. pallens, from near Norwich , in Br. Mus. , T. D. A. Cockerell. 



Gloucester E. — Sub-var. pallens, labelled "Cheltenham," specimens in British 

 Museum (T. D. A. Cockerell). 



Derby — Var. suh-nfa, Chapel-en-le-Frith, June 1897 ! C. Oldham. 



York Mid W. -Var. subrufa, Mickley, Aug. 1889 ! W.D.R. 



Aberdeen S.— Var. subrufa, Mony Musk ^Voods, Sept. 1886 ! C. B. Plowright. 



France — Sub var. requienii, Vizzavona, Corsica (Pollonera, op. cit.). 



Belgium — Var. subrufa, plentiful, Bois-de-Lessines (Le Comte, op. cit. ). 



Italy — Sub-var. mongianensis, Monte Pecoraro, near Mongiana, Calabria (Pau- 

 lucci, op. cit. ). Sub-var. pnllens,'Va\\e d'Antigorio, Piedmont (Less. & Poll. , op. cit. ). 



Var. rosea Van den Broeck, Annales Soc. Mai. Belg., 1870, p. 49. 



Liniax arborunt var. roseus Van den Broeck, op. cit. 



Limax arborttm var. coloratHS Van den Broeck, op. cit., p. 63. 



Limax arborum var. ne»toi-osa Baudon, M6m. Liin.ic. Oise, 1871, p. 19, pi. 4, f. 10-12. 



Liniax agrestis var. saxorum Baudon, op. cit., p. 16, pi. 2, f. 1. 



Limax attzlis Fischer, J. de Conch., Jan. 1877, p. 49. 

 Animal with main and inner bands more or less distinct; SHIELD with well- 

 marked lateral band on each side. Formula 021 120. 



The var. rosea s.str. has the ground colour rosy-white, becoming of a rufous brown 

 on the back ; inner band broad and well marked, and of a distinctly zig-zag pattern, 

 bordered by a rosy-white line ; main band repesented by an irregular and inter- 

 rupted row of black spots; shield reddish-brown, paler than the oack; the black 

 lateral bands do not reach beyond the anterior third of its length ; the left band is 

 margined internally, and that of the right side externally, by a white line. 



