29 
2 MONOGRAPH OF BRITISH LAND AND FRESHWATER MOLLUSCA. 
LITERATURE. 
Works which in addition to those on page 30 may be profitably consulted. 
Adams, L. E.—Observations on the Pairing of Limax maximus L.—Journ. of 
Conch., July 1898, pp. 92—95, and pl. ii. 
Alder, Joshua.—A Catalogue of the Mollusca of Northumberland and Durham. 
—Trans. Tynes. Nat. Field Club, 1848. 
Allman, G. J.—Description of a New Genus of Pulmonary Gastropod.—Ann. 
and Mag. Nat Hist., 1846, xvii. 
Am Stein, J. G.—Beitriige zur Mollusken-Fauna Graubiinden’s, 1889—1892. 
André, E.—La Fossette triangulare caudale des Arions.—Rey. Suisse et Ann. 
Mus. Hist. Nat. Geneva, 1898, pp. 179—182 and fig. 
Recherches sur Ja Glande P edionse des Pulmonés.—Rey. Suisse de Zool., 
1894, pp. 291—348. 
Ashford, C.—Land and Freshwater Mollusea round Christchurch, South Hants. 
—Journ. of Conch., Jan. 1887, p. 153. 
B., J.—Spinning Slugs.—Loudon’s Mag. Nat. Hist., ii., p. 485, Nov. 1829. 
Babor, J. F.—Ueber den Cyclus der Geschlechtsentwicklung der Stylommato- 
phoren.—Verh. Deutsch. Zool. Ges., 1894, pp. 55—61, and figs. 
Bandon, Aug.—Mémoire sur les Limaciens du Département de l’Oise Beauvais, 
1871. 
Belt, A.-—Uncommon Varieties of Arion and Limax—Zool., Oct. 1885, p. 389. 
Blair, T.-—A short Notice of the Habits of Testacéllus sctittulum. — Loudon’s 
Mag. Nat. Hist., Jan. 1833, pp. 48—47. 
Bree, W. T.—Spinning Slugs.—Loudon’s Mag. Nat. Hist., Mch. 1829, ii., p. 69. 
Breviere, L.—Tableau d. Limaciens d. Envir. de St. Saulge, 1881. 
Clarke, Rev. B. J.—On the Species of the Genus Limax occurring in Ireland.— 
Ann. and Mag. Nat. Hist., Nov. 1843, pp. 332—4. 
Cockerell, T. D. A.—Varieties of Arion ater.—Science Goss., June 1885, p. 140. 
A New Variety of Limax maximus.—Nat. World, Sept. 1885, p. 178. 
Chamzleonic Arions.—Science Goss., June 1886, p. 140. 
Limax arborum and the Influence of Altitude on Colour.—Zoologist, Aug. 
1886, pp. 418—420. 
Slug Variation.—Science Goss., Jan. 1887, p. 16. 
On Agriolimax montanus in Colorado.—Journ. of Conch., Oct. 1888, p. 358. 
Notes on Slugs, chiefly in the Collection at the British Museum.—Ann. and 
Mag. Nat. Hist., 1890, pp. 278 and 380 ; also 1891, pp. 97 and 328. 
Synopsis of the principal Varieties of Agriolimax agrestis.—Nant , Oct. 1891. 
On the Geographical Distribution of Slugs.—Proe. Zool. Soc., 1891, p. 214. 
Arion cireumscriptus Johnst. = bourguignati Mabille.—Brit. Nat., 1891, p. 20. 
Notes on A. hortensis, A. cireumscriptus, and their Allies. —Conch. i., p. 33. 
The Genera Limax, Arion, and Helix.—Conch., June 1892, ii., p. 28. 
The British Arionidz.—Conch., Dec. 1892, p. 84. 
A Revised List of the Species of British Slugs.—J. of Conch., 1892, p. 66. 
The Endemic Features of the British Slug l'auna.—Sci. Goss., 1892, p. 255. 
A Check List of the Slugs.—Conch., Sept. 1893, pp. 168—176; and Dee. 
1893, pp. 187—228. 
Collinge, W. E.—Notes on the Variation of the Genus Arion.—Ann. and Mag. 
Nat. Hist., 1892, pp. 307—S. 
Description of a New Variety of Arion hortensis Fér., and A. cireumscriptus 
Johnst.—Conch., 1892, ii., p. 26. 
Limax maximus and its variety cinereo-niger Wolf.—Ann. and Mag. N.H., 
1892, pp. 425—6. 
List of British Land and Freshwater Mollusca.—Conch., 1892, p. 34. 
A Catalogue of the Slugs of the British Isles. —Brit. Nat., 1892. 
A Review of the Arionidie of the British Isles. —Conch., Dec. 1892, p. 78. 
On the Structure and Affinities of some European Slugs.—Conch., March 
1893, p. 113. 
Some Notes on Irish Slugs.—Irish Nat., July 1893, p. 148. 
