MILAX SOWBRBII. 



157 



Var. bicolor Cockerell, Science Gossip, Aug. 1887, p. 187. 

 Sides of BODY black ; KEEL and SOLE orange coloured. 

 Devon N.— Barnstaple, F. J. Partridge (W. E. Collinge, op. cit.). 

 Middlesex— Ealing (T. D. A. Cockerell, op. cit.). 



The Geographical Distribution of M. sowerbii is very similar to 

 that of its congener, extending from the British Isles, along the west of 

 Prance, into Spain and Portugal, thence it has been reported as Milax 

 carinatus from several stations in the Mediterranean, and according to 

 Jeffreys extends as far as Russia. In the British Isles it is distributed 

 throughout England, Wales, and Ireland, but does not extend further 

 north in Scotland than Fifeshire. 



The uncertainty that prevails as to the exact limits of the specific line, 

 however, renders our knowledge of its inhabited area uncertain ; Dr. Scharff, 

 from his observations of the living animal at Ems in Germany, was greatly 

 struck by the manifest differences in aspect and habits of the Germanic 

 M. marginatus from the British M. sowerbii ; the former, which is probably 

 a distinct species, having a light grey body, similar to that of Arion circum- 

 scriptus, with a keel still paler, while the mantle and body are speckled 

 with minute black spots, and not lineolated as in M. sowerbii. It also 

 prefers to live amongst stone rubble in mountainous districts, whilst our 

 M. sowerbii shows a partiality for cultivated land. 



Geographical Distribution 



of 



Milax sowerbii (Fer.) 



^m Recorded Distribution. 

 ^^^ Probable Range. 



Fig. 179. 

 ENOLAND AND WALES. 

 Channel Isles— Generally distributed, common under stones in Guernsey, Sark 

 Jooke & Gwatkin, Q. .1. of C, 1878, p. 322). Jersey, Dr. Lukis (Ansted'f 



and Herin (Cooke 

 Channel Isles, 1862). 



St. Sampson's, Guernsey, Sept. 1891 ! B. Tomlin. 



PENINSULA. 



Cornwall W.— Generally distributed (E. D. Marquand, Penzance Trans., 1884). 

 Numerous about Truro, Dec. 1883 ! and at Newquay, Sept. 1886, J. H. James. 

 Near Camborne (J. P. Johnson, Geol. Mag., Jan. 1903, p. 27). 



Devon S.— Frequent in gardens about Exeter (E. Partitt, Naturalist, 1854, p. 

 154). Torcross, Aug. 1885, F. G. Fenn. Torquay, April 1888 ! C. Ashford. Com- 

 mon in Mr. McMurdo's garden, Topsham, Aug. 1892, L. E. Adams. 



Devon N.— Northani and Lynton, Nov. 1885 ! W. A. Gain. Common on east 

 side of Hele Bay near Ilfracorabe, March 1887 (B. Tomlin, J. of Conch., Apr. 1887). 

 Barnstaple, 1898 (F. J. Partridge, J. of Mai., Dec. 1898). 



Somerset S.— Abundant in the allotment gardens, near the canal and gasworks, 

 Bridgwater, Aug. 1884 ! W. Vinson. 



