310 CYCLOSTOMACEA. 



Sub-Genus D1PLOPOMA, Pfeiffer. 



76. Cyclostoma (Diplopoma) architectonicum, 



Gund. 

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



Genus CISTULA, Gray. 



1. Cistnla agrestis, Gund. 



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



2. Cistnla agassizi, Charp. 



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



3. Cistnla antiguensis, Shut. 



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



4. Cistula catenata, Gid. 



14 Cuba; ex c. Prof. W. Newcomb and F. L. Layard, Esq. 



5. Cistnla cinclidodes, Pfeiffer. 



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



6. Cistula illnstris, Poey. 



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



7. Cistula inculta, Poey. 



10 Cuba ; ex c. Prof. W. Newcomb and F. L. Layard, Esq. 



8. Cistula largillierti, PfeifEer. 



3 Yucatan ; ex c. A. Morelet, Esq. 



9. Cistula mackinlayi, Gund. 



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



10.- Cistula mordax, c. B. Adams. 



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



2 Jamaica ; coll. C. B. Adams, fide W. A. Brown, Esq. 



11. Cistula rigidula, Morelet. 



3 Yucatan ; ex c. A. Morelet, Esq. 



12. Cistula riisei, Pfeiffer. 



2 Porto Rico ; ex c. W. A. Brown, Esq. 



