471 



Ency. Meth. 1, p. 377. 

 Don. B. C. 3, pi. 79. 

 Brown's C. Gt.;B., pi. 38, f. 31, 2. 

 Thes. C., p. 572. 

 Thes. C., p. 576, 47. 

 Thes. C., p. 576, no. 46. 

 Ency. Meth., 1, p. 372. 

 Thes. C., p. 586, pi. 125, f. 116. 

 Thes. C., p. 573, pi. 121, f. 45. 

 Thes. C., p. 564. 

 Thes. C., pi. 120, f. 4-6. 

 Chemn. 10, pi. 146, f. 1350, 1. 

 Astrol., pi. 26, f. 4-7. 

 Reeve C. Syst., pi. 153, f. 2. 

 Bost. Jour., v. 2, pi. 1, f. 8. 

 Mont. Test., pi. 7, f. 5. 

 Phil. En. Sic., p. 123. 

 Phil. En. Sic., pi. 7, f. 21. 

 Thes. C., p. 586. 

 Test. Brit., p. 222, pi. 7, f. 4. 

 Thes. C., pi. 120, f. 2. 

 Gmel., p. 3433, no. 36. 

 Thes. C., p. 565. 

 Thes. C. pi. 120, f. 12-14. 

 Chemn. 10, pi. 146, f. 1348, 9. 

 Born Mus., pi. 9, f. 1. 

 Thes. C., p. 579, pi. 124, f. 83. 

 Thes. C., p. 597, pi. 121, f. 52. 

 Astrol., pi. 26, f. 13-16. 



Bulla Ceylanica, Brug. 

 Bulla resiliens, Don. 

 Akera flexilis, Brown, 

 is Bulla bullata, Mull, 

 is Bulla media, Phil, 

 is Bulla Adansonii, Phil, 

 is Bulla Amygdalus, List. 

 Subgenus Atys. 

 Subgenus Akera. 

 Subgenus Aplustrum. 

 Aplustre fasciatum, Schum. 

 Bulla amplustre, Linn. 

 Aplustra pulchella, Swains. 

 Bulla aplustre, Lam. 

 Subgenus Cylichna. 

 Subgenus Tornatina. 

 Bulla semisulcatn, Phil. 

 Subgenus Atys. 

 Bulla umbilicata, Mont. 

 is Bulla truncatula, Brug. 

 is Bulla lineata, Wood. 

 is Bulla vexillum, Chem. 

 Sutgenus Hydatina. 

 Bulla fasciata, Brug. 

 Bulla velum, Gmel. 

 Bulla amplustre, Born. 

 Subgenus Haminea. 

 Subgenus Linteria. 

 Bulla calyculata, Brod. 



3218 i Algerica, 



Desh., 



GENUS PARMACELLA. (P. 115.) 



Oran, 



with the mollusk. 



GENUS HELIX. (P. 124.) 



Fer. pi. 75 A, f. 1. 

 Bost. Proc., 1852, p. 175. 

 Bost. Proc., 1850, p. 194. 

 Pfr. Symb. 3, p. 68. 

 Fer. pi. 21 A, f. 1-7. 

 Kiist., pi. 5, f. 1, 2. 

 Bost. Proc., 1845, p. 15. 

 Rev. Zool., 1845, p. 311. 

 Phil. Icon., pi. 7, f. 10. 



(Helieella, Fer.) 



is Helix occidentalis, Recluz. 

 Helix castanea, Oliv. 

 Helix mutata, Lam. 



Helix Ponentina, Mor. 

 Helix Lisbonensis, Pfr. 



