RISSOUXE. 53 



var. minor [? dist. species], 



Hydrobia miliacea, var. minor, G. Nevill, Journ. Asiat. Soc. Bengal, 1880 

 long. 2, diam. 1\ mil. Pt. Canning. 



20 Port Canning ; coll. Dr. F. Stoliczka and G. Nevill, Esq. 



36. Hydrobia (Bythinella ?), n. sp. (?) 



? Paludinella subsinuata, DunJcer, MalaJc. Slat. 1862, Pondicherry. 



50 Lake Negumbo, Ceylon ; coll. H. Nevill, Esq. [as " H. ceylanica, 

 n. sp."] 



37. Hydrobia (Bythinella ?) n. sp. 



4 Sind; coll. W. T. Blanford, Esq. 

 1 Bombay ; coll. Rev. S. B. Fairbank. 



Probably two distinct species. 



38. Hydrobia (Bythinella ?) n. sp. 



1 Brackish- water Lake, Mauritius ; coll. G. Nevill, Esq. 



39. Hydrobia (Bythinella) austriaca. 



Paludinella Austriaca, von Frauenfeld, Sitz. K. AJcad. Wissens. Wien, XXII, 

 1862, Lower Austria. 



2 Carynthia [Austria] ; ex " Linnsea." 



40. Hydrobia (Bythinella) dunkeri. 



Paludinella Dunkeri, von Frauenfeld, Sitz. K. AJcad. Wissens. Wien, XXII, 

 1862. 



3 " Biedenkopf " [Germany] ; ex " Linnaea." 



41. Hydrobia (BythineUa) lacheineri- 



Paludina Lacheineri, Charpentier ms., Kiister, Conch.- Cab. II, 1853, Gratz 

 and LaibacJi ; sect. Frauenfeldia. 



3 Mantua [Italy] ; ex " Linnaa." 



2 Venice ; ex c. C. F. Ancey, Esq. 



42. Hydrobia (Bythinella) schmidti. 



Paludina Schmidtii, Charpentier ms., Kuster, Conch.-Cab. II, 1852, Laibach. 



3 Carynthia ; ex " Linnsea." 



