1897.] ME. W. E. COILIKGB ON ETJEOPEAN SLUGS. 449 



Group V. 



34. A. intermediuSj Normand, 1853. (British Isles 



and Continent.) 



35. A. molleri, PoUonera, 1889. (Continent.) 



36. A. pascalianus, Mabille, 1868. (Continent.) 



37. A. vejdovskijii, Babor & Kostal, 1893. (Con- 



tinent.) 



7. Bihliograjiphy . 



1. Babor, J., & Kostal, J. " Note sur une espece nouvelle 



d'Arion." Sitzungsb. Gesell. d. Wiss., math.-nat. CI., Prag, 

 1893, pp. 1-4, pi. IV. 



2. Babob, Joseph F. " Note on Avion citrinus, Westerlund." 



Journ. Malac. 1894, vol. iii. pp. 45-47, pi. i. 



3. CocKEEELL, T. D. A. A Check- List of the Slugs. London, 



1893. 



4. & Laekin, E,. E. " On the Jamaican Species of 



Veronicella." Journ. Malac. 1894, vol. iii. pp. 23-30. 



5. CoLLiNGE, Waltee E. " Descriptions of a New Variety of 



Avion Jiortensis, Per., and Avion civcumscriptus, Johnst." 

 Conchologist, 1892, vol. ii. pp. 26-7, 



6. . " A Eeview of the Arionidce of the British Isles." 



Ibid. pt. i. pp. 56-66, pt. ii. pp. 76-83. 



7. . " On the Structure and Affinities of some European 



Slugs." Ibid. 1893, vol. u. pp. 113-117. 



Appendix and Notes to ' A Check-List of the Slugs.' 



London, 1893. 



9. . " On the Generative Anatomy of Amalia ma7-ginata, 



Drap., and some remarks upon the Genus." Journ. Malac. 

 1894, vol. iii. pp. 70-73, fig. 1. 



10. . " Avion hovtensis var. ccevideus." Journ. Malac. 1895, 



vol. iv. p. 73. 



11. P^EUSSAC, A. DE. Hist. Nat. d. Mollusques. Paris, 1819- 



1851. 



12. Gain, W. A. " Some Remarks on the Colour Changes in 



Avion intevmedius, Normand." Conchologist, 1892, vol. ii. 

 pp. 55-56. 



13. JoussEAUME. Bull. Soc. Zool. Prance, 1876. 



14. Lessona & PoLLONEEA. Monografla dei Limacidi Italiani. 



Torino, 1882. 



15. Mabille, J. " Des Limaciens europeens." Eev. et Mag. de 



Zool. 1868 (ser. 2), vol. xx. 

 16. . Hist. Malac. bass. Paris, 1870. 



17. Moquin-Tandon, A. Hist. Nat. d. Mollusques terrestres et 



fluviatiles de Prance. Paris, 1855. 



18. Pilsbey, H., & Vanatta, E. G. " Eevision of the North 



American Slugs : Aviolimax and Apliallarion." Proc. Acad. 

 Nat. Sci. PhUad. 1896, pp. 339-350, pis. xii.-xiv. 



