ARION ATER. 187 



„ „ „, ,, , , , ENGLAND. 



t-ornwall W.—feub-v. subrctwulata, Tniro, J. H. James (Cockerell, Sc. Goss.,l.c.). 



» . . Ti , , ,, IRELAND. 



Antrim— Murlough, May 1897, Lionel E. Adams. 



Louth— Carlingfoid, Dec. 1904 ! P. H. Grierson. 



Dublin— A sub-var. witli deep blaclc interstices, a blackish mid-dorsal line, and 

 hlackish shield, with indications of darker median and lateral -lines, was found at 

 Howth, May 1892, R. F. Schaiff. 



Cork N. -Mallow, Nov. 1884 ! W. F. de Vismes Kane. 



Var. faseiata Van den Broeck, Mem. Soc. Mai. Belg., 1869, p. 87. 



Arion ru/us -nxr fasciatus Van den Broeck, Mem. Soc. Mai. Belg,, 1869, p. 87. 

 Arlon aler var. subdeletus Cockerel), Science Go.ssip. Aug. 1886, p. 187. 

 Avion ater var. faseiata Cockerell, Science Gossip, Feb. 1889, p. 44. 



Animal with a black or blackish lateral band on each side of the body and shield. 



The sub-var. subdeleta is greenish or yellowish-grey, lateral banding brownish 

 and very indistinct, head and tentacles blue-black. 



This variation, which is an illustration of colour development arre.sted at the 

 banded juvenile stage, is liable to occur in all the various ground colourings, but 

 is more frequently met with in Ireland and other countries towards the liniits of 

 the distributional area of the species, than at or near the more active evolutionai-y 

 centre, where the more uniform typical colouration of the body is more consistently 

 and generally acquired. 



ENGLAND AjYD WALES. 



Cornwall W. — Sub-var. phnnbeo-f((Scirtfa., St. Columb, May 1883 ! W. Vinson. 

 Kent E. — One specimen, sub-var. bmmneo-fa.^ciata, 'Dover, Ap. 1899, L. E.Adams. 

 Norfolk E. — Sub-var. bnmneo -faseiata, Strampshaw Hall, July 1904 ! W. J. O. 

 Holmes. 



Stafford — Sub-var. hriinneo-fasciata, near Stafibrd, Aug. 1886 ! L. E. Adams. 

 Pembroke — Sub-v. brumieo-fasciata, North Clifl', Tenby, Feb. 1898 ! A. G. Stubbs. 

 Derby — One specimen, sub-v. brunneo -faseiata, Norbury, June 1897, L. E. Adams. 

 York S.W. — One specimen, sub-var. bnmneo-faseiata, Penistone, L. E. Adams. 



IRELAND. 



Derry — Sub-var. hrunneo -faseiata, Magilligan, Sept. 1904 ! J. N. Milne. 



Antrim — Sub-var. phimbeo -faseiata, Bronghshane, June 1886 ! Rev. S. A. Brenan. 



Monag^han — Sub-vars. brunneo -faseiata and nigreseens-faseiata, Carrickmacross, 

 July 1904 ! P. H. Grierson. 



Meath — Sub-var. bnmneo-faseiata, Drumcondra and Slane, July 1904 ! P. H. 

 Grierson. 



Dublin — Sub-var. brunneo-faseiata, Kill-of-the-Grange, April 1886 ! and Glen 

 Druid, near Carrick mines, Oct. 1886 ! W. F. de Vismes Kane. 



Wicklow — Sub-var. livida-faseiata, Enniskerry, Aug. 1904 ! P. H. Grierson. 



Leitrim— Sub-var. bmnnen-fasciata, Swiss Valley, Glencar, July 1904 ! A. W. 

 Stelfox; and Mohill, July 1904 ! P. H. Grierson. 



Mayo W. — Sub-var. aurantia-fa^eiata, Enniscoe Demesne, Sept. 1885 ! W. F. 

 de Vismes Kane. 



Tipperary N. — Sub-var. bnimieo-faseiafa, shores of Lough Derg, Sept. 1904 ! 

 G. J. Fogerty. 



Cork S. — Sub-var. rufo-fasciata, common at Glengariif, Sept. 1898, L. E. Adams. 



CONTINENTAL DISTRIBUTION. 



Belgium — Var. rufo-fasciata, Bel-Oeil, Hainault and Fond de Forgt near Li^ge. 

 Var. marginella Schranck, Fauna Boica, 1803, p. '252, no. 3L58. 



Liviax marginellus Schranck, op. cit. 



Arion evipiricorwn swaminerdaviii Kalenicz., Bult Mosc, 1851, t. xxiv., pt. ii., p. 113. 



Arion euipiricorum razounio^slisii Kalenicz., op. cit. 



Arion ru/us 77iarginatus Moquin-Tandon, Hist. Moll., p. 11, pi. i, f. 24. 



Arion ru/us V nigresceits Moquin-Tandon, op. cit. 



Arion ater var griseo-inarginata Duin. & Mort., Cat. Moll. Savoie, 1857, p. 6. 



Animal with black body and shield, foot-fringe yellow or vermilion red. 



The Limax marginellus Schranck, Arion empirirorum su-ammerdamii KaX., and 

 Arion rufus var. margivafa Moq., all conform to the varietal description. 



The sub-vars. nigreseens Moquin-Tandon and razoumowskli Kal. appear 

 identical, the body being blackish in colour, and the foot-fringe yellowish or reddish. 



The sub-var. gl'iseo-marginata has the foot-fringe greyish. 



