10 HELICID^. 



16. Gribbus (Gonospira) bacillus, Pfeiffer. 



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

 G. Nevill, Esq. 



17. Gibbus (Gonospira) versipolis, F^russac. 



[_= Pupa fimicula, Val.] 

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



18. Gibbus (Gonospira) bourguignati, Deshayes. 



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



19. Gibbus (Gonospira) turgidulus, Desiiayes. . 



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) j coll. G. Nevill, Esq. 



23. Gibbus (Gonospira) striaticosta, Morelet. 



[= G. davulus, H. A. Adams.] 

 8 Savanna, Mauritius, type of G. davulus ; coU. G. Nevill, Esq. 



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



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



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



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

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



26. Gibbus (Gonospira) teres, Pfeiffer. 



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



Genus STREPTOSTTLA, Shuttl. (type S. nkoUi). 



1. Streptostyla physodes, Shuttl. 



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



2. Streptostyla cubaniana, Orbigny. 



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



