LIMAX CINEREO-NIGER. 59 
The numerous modifications discriminated by various authors have, for 
convenience of study, been grouped into several sections, based upon the 
fundamental colour of the body, those varieties which have retained to a 
marked degree in adult life the immature character of their colouring being 
regarded as sub-varieties. 
FUNDAMENTAL BODY-COLOUR WHITE. 
Var. pallescens Dum. & Mort., Mal. Savoie, 1857, p. 13. 
Limax lineatus var. pallescens Dum. & Mort., op. cit. 
Limax cinereo-niger var. albicans Malm, Skand. Limac., 1868, p. 61, pl. 5, f. 13. 
Limax cinereo-niger var. tsseli Pini, Moll. Esino, 1876, p. 26, pl. a, ff. 4, 4 
Limax albus Paasch, Archiv f. Naturg., 1843, p. 85. 
Limax cinereo-niger var. hareri Heyn., Mal. BI. , 1862, p. 141. 
ANIMAL white or whitish, with or without darkly tinted side-areas to the sole. 
Dumont & Mortillet remark that this form is found in very shady places. 
The form named by Heynemann, hareri, is pure white; L. einereo-niger 
var. albieans and L. lineatus var. palleseens are whitish ; while L. cinereo- 
niger var. isseli has the body whitish and a white keel. 
Not hitherto recorded from the British Isles. 
Germany—An albine form, from Hohen-Wittlingen, Swabian Alps (Weinland, 
Nachrichtbl, 1874, p. 42). Sub-var. dareri, in the Taunus Mountains, June 1861 
(Heynemann, op. cit.). 
France—Haute Savoie (Dumont & Mortillet, op. cit.). 
Italy—Sub-var. isseli, Esino Valley, near Vezio in Lombardy (Pini, op. cit.). 
Sweden—Sub-var. albicans, common on Bornholm ; and has also been found near 
Ljungskile, and on the Alingsas tract (Malin, op. cit.). 
Norway—Sub-var. alba, Bamble, Christiansand Stift(Esmark, J. of C., 1886, p. 100). 
Var. strobeli Lessona, Moll. Piemonte, 1880, p. 21 
Limax cinereo-niger § strobeli Lessona, op. cit. 
KEEL and median-line whitish, sides of body ash-coloured but showing the white 
ground colour as a series of whitish maculations with a single black band on each 
side, broken up into a row of spots ; SHIELD ash-coloured. Formula 001 100. 
Not hitherto recorded for the British Isles. 
Italy—Maccuegnaga, Val Anzasea, Piedmont, at an altitude of 1,323 metres (about 
4,340 feet) (Lessona & Pollonera, Mon. Limac. Ital., 1882, p. 30). 
Var. vera Dumont & Mortillet, Mal. Sav., 1857, p. 13. 
Limax antiquorum var. 3 Ferussac, Hist. Moll., 1819, p. 68, pl. 4, f. 1. 
Limax antiquorun v. ferrussackit Kaleniczenko, Bull. Soc. Imp. Mosc., 1851, p. 120. 
Limax lineatus var. verus Dumont & Mortillet, op. cit. 
Limax lineatus var. interruptus Dumont & Mortillet, op. cit. 
Limax cinereo-niger var. albicans, cinereo-nebulosus Malm, Skand. Limac., 1868, p. 60. 
Limax cinereo-niger 1 stabilet Lessona, Moll. Piemonte, 1880, p. 21. 
KEEL whitish, two dark zones on each side of the body. Formula 021 120. 
The Limax antiquorum var. B of Ferussac, though usually referred to as uni- 
formly cinereous, is according to the figure distinetly quadrifasciate, with paler 
nebulous markings around the margin of the shield, ard therefore belongs to this 
form. The reference by Kaleniczenko to Ferussac, Hist. Moll., pl. 4, f. 1, would 
seein, though not with certainty, to place his variety under this head. 
The var. vera s.st. has the two black bands on each side and a dark shield. 
The sub-var. interrupta differs in the lateral bands being interrupted. 
The sub-var. einereo-nebulosa has the keel tinged w ith yellowish, shield yel- 
lowish clouded with grey, sides of body whitish clouded with grey, lateral zones 
resolved into series of “pale brown spots. 
The sub-var. stabilei has the keel yellowish, the back blackish, and sides paler. 
Oxford—Sub-var. vera, a young specimen from Oxford in the British Museum, 
presented by the Rev. A. M. Norman. 
Germany — Heynemann records a sub-variety from Rastadt in Baden: with two 
rows of squarish black spots at éach side, upon a white ground (Mal. BI., 1862, p. 99). 
France—Sub-vars. vera and interrupta, Haute Savoie (Dum. & Mort, op. cit. ). 
Italy—Sub-var. stabi/ei found in Piedmontese Alps by Stabile (Lessona, op. cit.). 
Sweden—Sub-var. cinerco-nebulosa at Ljungskile (Malm, op. cit.). 
Norway—Sub-var. cinerco-nebulosa at Malmons, Laurvik, and Skien (Esmark, 
J. of Conech., Oct. 1886, p. 100). 
Russia—Sub-var. ferrussackii Kal., Tehernigov and Poltaya (Kalen., op. cit. ). 
