HELICINACEA. 323 



Family HELICINACEA, Pfri/er. 



1. Genus TROCHATELLA, Swains, (type T. pul- 

 chella, Gray). 



1. Trochatella politula, Poey. 



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



2. Trochatella opima, Shut. 



1 Haiti; ex c. W. A. Brown, Esq. 



3. Trochatella elegantula, Pfeiffer. 



8 S. Domingo ; ex c. Prof. W. Newcomb and W. A. Brown, Esq. 



4. Trochatella virginea, Lea. 



1 Haiti ; ex c, W. A. Brown, Esq. 



5. Trochatella pulchella, Gray. 



12 Jamaica; ex c. W. A. Brown, Esq., and E. L. Layard, Esq. 



6. Trochatella josephinse, C. B. Ad. 



4 Jamaica ; ex c. Prof. W. Newcomb. 



7. Trochatella sloanei, Orb. 



2 Cuba ; ex c. Prof. W. Newcomb. 



8. Trochatella tankervillii, Gray, 



6 Jamaica; ex c. W. A. Brown, Esq., Prof. W. Newcomb, and E. L. Lay- 

 ard, Esq. 



9. Trochatella regina, Mori. 



6 I. of Pines, Cuba; ex c. Prof. W. Newcomb, ($ and $), and 

 E. L. Layard, Esq. 



10. Trochatella constellata, Mori. 



2 I. of Pines, Cuba; ex c. Prof. W. Newcomb, &c. 



11. Trochatella subunguiculata, Poey. 



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



Genus -SCHASICHEILA, Shut, (type 8. alata, Mk.). 



1. Schasicheila alata, Mk, 



2 Bahamas ; ex c. W, A, Brown, Esq, 



