THE BEITISH FAUNA. 295 



29. Cyclostoraa sulcatum. Drap. 33. t. 13. f. 1. Inbab. 

 Provence, South Italy, and Sicily. 



30. Valvata minutac Drap. 12. t. 1. f. 36, 37, 38. Inliab. 

 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 coiFee. 



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

 Valuta bullcBoides. 



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

 cent's. (Guilding.) 



8. Tralia pusilla. Gray. — Voluta triplicata. 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. (_/zg. 71.) Lamarck, F>s-l'^- Fig. 12. 

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



11. Truncatella subcylindrica. (Jig. 72.) 

 Inhab. West Indies. 



u4 



