MILAX SOWERBII. 157 
Var. bicolor Cockerell, Science Gossip, Aug. 1887, p. 187. 
Sides of Bopy 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 MZ. sowerbii is very similar to 
that of its congener, extending from the British Isles, along the west of 
France, 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 MW. sowerbii ; the former, which is probably 
a distinct species, having a light grey body, similar to that of Arzon ezrcum- 
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 sowerbi (Fér) 
HR Recorded Distribution. 
(GQ Probable Range. 
Fic. 179. 
ENGLAND AND WALES. 
Channel Isles—Generally distributed, common under stones in Guernsey, Sark, 
and Herm (Cooke & Gwatkin, Q. J. of C., 1878, p. 322). Jersey, Dr. Lukis (Ansted’s 
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. 1885! 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. Parfitt, Naturalist, 1854, p. 
154). Toreross, Aug. 1885, F. G. Fenn. Torquay, April 1888! C. Ashford. Com- 
mon in Mr. MeMurdo’s garden, Topsham, Aug. 1892, L. E. Adams. 
Devon N.—Northam and Lynton, Nov. 1885! W. A. Gain. Common on east 
side of Hele Bay near Ilfracombe, March 1887 (B. Tomlin, J. of Conch., Apr. 1887). 
Barnstaple, 1898 (F. J. Partridge, J. of Mal., Dec. 1898). 
Somerset S.— Abundant in the allotment gardens, near the canal and gasworks, 
Bridgwater, Aug. 1884! W. Vinson. 
