THE BKITISH FAUNA. 295 



29. Cyclostoma sulcatum. Drap. 33. t. 13. f. 1. Inhab. 

 Provence, South Italy, and Sicily. 



30. Valvata minuta. Drap. 12. t. 1. f. 36, 37, 38. Inhab. 

 France. 



31. Valvata spirorbis. Drap. 41. t. l.f.32,33. Inhab. France. 



32. Unio Batava, t. 2. f. 10. 



33. Unio ovalis, t. 2. f. 12. 



34. Cyclas lacustris. Drap. 130. t. 10. f. 6, 7.; Turton, 

 Man. ed. 1. 14. t. 1. f. 4. Inhab. France. 



The following introduced species are only found in tropical 

 climates : 



1. Achatina octona, t. 6. f. 72. Inhab. the West Indies, 

 St. Vincent's. (Dr. Turton.) 



2. Bulimus exilis, t. 9. f. 109. Inhab. West Indies, St. 

 Vincent's. (Rev. L. Guilding.) 



3. Bulimus fragilis. Lam. Hist. vi. ed. 2. 231. Inhab. 

 Brazil. 



4. Bulimulus fuscus. Guilding, Zool. Journ. iv. 176. Inhab. 

 West Indies, St. Vincent's. (Rev. L. Guilding.) 



5. Bulimus cylindrus. Gray, Ann. Phil 14. f. 68. Inhab. 

 West Indies, Island of Tortula. (Rev. L. Guilding.) 



6. Conovulus coffee. 



In Montagu's collection in the British Museum, mixed with 

 Valuta lullceoides. 



7. Detracia bullseoides. Gray. Inhab. West Indies, St. Vin- 

 cent's. (Guilding.) 



8. Tralia pusilla. Gray. Voluta triplicate Donovan, B. 

 S. t. 138. Inhab. West Indies. 



9. Aplexus rivalis, t. 9. f. 112. Maton and Racket, L. Trans. 

 xiii. 126. t. 4. f. 2. Inhab. West Indies, St. Vincent's. (Rev. 

 L. Guilding.) 



10. Neritina virginea. (fig. 71.) Lamarck, 

 n. 18. Inhab. West Indies and N. America. 



11. Truncatella subcylindrica. (fig. 72.) 

 Inhab. West Indies. 



u4 



