RISSOIDA. 53 
var, minor [? dist. species], 
Hydrobia miliacea, var. minor, G. Nevill, Journ, Asiat. Soc. Bengal, 1880 
—long. 2, diam. 13 mil.— Pt. Canning. 
20 Port Canning ; coll. Dr. F. Stoliczka and G. Nevill, Esq. 
36. Hydrobia (Bythinella ?), nu. sp. (?) 
P Paludinella subsinuata, Dunker, Malak. Blat. 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. 
88. Hydrobia (Bythinella ?) n. sp. 
1 Brackish-water Lake, Mauritius; coll. G. Nevill, Esq. 
39. Hydrobia (Bythinella) austriaca. 
Paludinella Austriaca, von Frauenfeld, Sitz, K. Akad. Wissens. Wien, XXII, 
1862, Lower Austria. 
2 Carynthia [Austria] ; ex “ Linnea.” 
40. Hydrobia (Bythinella) dunkeri. 
Paludinella Dunkeri, von Frauenfeld, Sitz. K. Akad. Wissens. Wien, XXII, 
1862. 
8 “ Biedenkopf” [Germany] ; ex “ Linnea.” 
41, Hydrobia (Bythinella) lacheineri. 
Paludina Lacheineri, Charpentier ms., Kiister, Conch.-Cab. IZ, 1853, Gratz 
and Laibach ; sect, Frauenfeldia. 
3 Mantua [Italy] ; ex “ Linnea.” 
2 Venice; ex c. C. F. Ancey, Esq. 
42, Hydrobia (Bythinella) schmidti. 
Paludina Schmidtii, Charpentier ms., Kiister, Conch.-Cab. IT, 1852, Laibach, 
83 Carynthia ; ex “ Linnza,” 
