II. Order PROSOBRANCHIA, #". Milne-Edw, 



I. Sub-order Neurobranchia, 



[ = Pulmonata operculata, Fer.] 



Family ACICULIDjE, Gray. 

 Genus GEOMELANIA, Pfeiffer. 



1. Geomelania jamaicensis, C. B. Adam. 



7 Jamaica; ex c. W. A. Brown, Esq. 



2. G-eomelania vicina, Brown. 



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



3. Geomelania media, Brown. 



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



4. Qeomelania fortis, Brown. 



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



5. Geomelania gracilis, Brown. 



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



6. Geomelania elegans, Brown. 



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



7. Geomelania typica, Brown. 



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



8. Geomelania minor, Brown. 



6 Jamaica; ex c. W. A. Brown, Esq. 



9. Geomelania affinis, Brown. 



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

 Sub-Gemis CHITTIA, Livesay. 



10. Geomelania (Chittia) simiosa, Chitty, 



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



