10 HELICID^. 



16. Gibbus (Gronospira) bacillus, PfeifEer. 



16 Vacoa, Trou aux cerfs, Savanne, and Pouce Mt., Mauritius; coll. 

 G. Nevill, Esq. 



• 17. G-ibbus (G-onospira) versipolis, F^mssac. 



[= Pupa fmiicula, Val.j 

 6 Near Salazie, Bourbon; coll. G. Nevill, Esq. 



18. Gibbus (Gonospira) bourguignati, Deshayes. 



14 Salazie, Bourbon; coll. G. NeviU, Esq. 



19. Gibbus (Gonospira) turgidulus, Deshayes. 



5 Pass leading to Salazie ; coll. G. Nevill, Esq. 



20. Gibbus (Gonospira) cylindrellus, H. A. Adams. 



9 Salazie, Bourbon (type) ; coll. G. Nevill, Esq. 



21. Gibbus (Gonospira) uvula, Deshayes. 



5 Pass leading to Salazie ; coll. G. Nevill, Esq. 



22. Gibbus (Gonospira) desbayesi, H. A. Adams. 



8 Salazie, Bourbon (type) ; coU. G. Nevill, Esq. 



23. Gibbus (Gonospira) striaticosta, Morelet. 



[= G. clavulvs, H. A. Adams.J 

 8 Savanne, Mauritius, type of G. elamtlus ; coU. G. Nevill, Esq. 



24. Gibbus (Gonospira) nevilli, H. A. Adams. 



6 Deux Mamelles and Pouce Mt., Mauritius (type) ; coll. G. Nevill, Esq. 



25. Gibbus (Gonospira) productus, H. A. Adams. 



[= Pupa palangula, Mori., not F^r.J 

 16 Mauritius (passim) ; coll. G. NevUl, Esq. 



26. Gibbus (Gonospira) teres, PfeifEer. 



20 Mauritius (passim) ; coU. G. Nevill, Esq. 



Genus STREPTOSTTLA, Skuttl (type S. nicoleti). 



1. Streptostyla physodes, Shutti. 



1 Mexico ; ex. c. Prof. W. Newcomb. 



2. Streptostyla cubaniana, Orbigny. 



1 Cuba ; ex c. F. Layard, Esq. 



