RTSSOIDJl. 55 



Sub-Genus TSTONIA, Sfimpson. 

 Smithsonian Misc. Coll. VII, 1S65, type T, elathvaia, Stimpsort. 



50. Hydrobia (Tryonia) protea. 



Ainnicola protea, Gould, Proc. Boston Soc. V, 1855, Colorado Desert. 

 18 Desert, E. of California ; coll. Prof. E. C. Stearns. 



Sab-Genus FSEUDAMNICOLA, Paulucci. 



Mater. Malac. Ital. 1878, type Tahidina similis, Brap. \_for Amnicola, 

 Authors, not of Gould and Said.']. 



51. Hydrobia (Pseudaranicola) similis. 



Cyclostoma simile, Draparnaiid, Hist. Moll. Fr. 1S05 [^sine Mai.] ; fide 

 Jeffreys, Hydr. anatina, Auct. [not of Foiret or Drop.]. 



2 Boufarick [Algiers] ; coll. P. Joly, Esq. 



3 England ; ex c. G. Nevill, Esq. 



52. Hydrobia (Pseudamnicola) dupotetiana. 



Paludina Dupotetiana, Forbes, Ann. Mag. 1838, Bougie. 



30 Maison Can-ee [Algiers] ; coll. P. Joly, Esq. 

 7 Biskra J coll. P. Joly, Esq. [3i, 2^]. 

 6 Bogliar; coll. P. Joly, Esq. [as " Hy. lutea"]. 



53. Hydrobia (Pseudamnicola) subprodueta. 



Hydrobia subprodueta, BaladUhe, Rev. Mag. Zool. 1866, Catalonia and 

 Pyrenees Orientales, " errata," p. 40, for Hy. spirata, Paladilhe, I, c. [not 

 of Mequien]. 



10 Cartagena [Spain] ; coll. G. Nevill, Esq. 



54. Hydrobia (Pseudamnicola) macrostoma. 



Paludina macrostoma, Kiister, Conch.-Cah. II, 1853, Athens. 

 2 Clialcis [Greece] ; ex " Linnsea." 



55. Hydrobia (Pseudamnicola) seminula. 



Amnicola seminula, Charpentier ms., von Frauenfeld, Ver. zool.-hot. 

 Ges. Wien, 1863, p. 1027, Arcadia — long. 1'5, diam, 13 mil. 



8 Eubcea; ex " Linncea" and P. Bouvier, Esq. 



56. Hydrobia (Pseudamnicola) negropontina. 



Amnicola negropontina, Clessin, Malak. Plat. XXV, 1878, Euhaea. 

 4 Eubcea ; ex " Linnsea. " 



