54 



var. cyclolabris. 



Palndinella cyclolabris, JRossmassler ms., v. Frauenfeld, Ver. zool.-lot. Oes. 

 Wien, 1863. 



2 Hall, Tyrol ; ex c. C. F. Ancey, Esq. 



43. Hydrobia (Bythinella) charpentieri. 



Amnicola Charpentieri, Both, MalaJc. Bl. II, 1856, Attica long. 3\, diam. 

 S\ mil. 



2 "Fame's," France [?] ; ex " Linnjea." 



44. Hydrobia (Bythinella) opaca. 



Paludinella opaca, Ziegler ms., von Frauenfeld, Sitz. K. AJcad. Wissens. 

 Wien, XXII, 1862. 



2 Carniola [Austria] ; ex " Linnsea." 



45. Hydrobia (Bythinella) lata. 



Paludinella lata, von Frauenfeld, Ver. K. zool.-lot. Ges. Wien, 1863, 

 Hungary. 



2 Kaschau [Hungary] ; ex " Linnaea." 



46. Hydrobia (Bythinella) parvula. 



Paludina parvula, Hutton, J. Asiat. Soc. Bengal, 1849, KojucJc Pass, 

 Chummun anfr. 4, long, -^th inch.; Con. Ind.pl. 151, fig. 8, Afghan- 

 istan, also Ahmednugger ; probably = Bythinia globula, Lea, 1856, 

 India and tanks at Calcutta" [/] 

 I have not seen any species of the genus from Afghanistan 



or the North- West Frontier. 



The species is not represented in the Museum. 



47. Hydrobia (Bythinella) gibba. 



Cyclostoma gibbum, Draparnaud, Hist. Moll. France, 1805 [sine Hal.'] / 

 sect. Belgrandia. 



3 South France ; ex " Linnaea.'* 



48. Hydrobia (Bythinella) californica. 



Hydrobia Californica, Tryon, Amer. Journ. Conch. I, 1865, Oakland, tyc. 

 15 Oakland, California ; coll. Prof. W. Newcomb. 



49. Hydrobia (Bythinella) dolichia. 



Hydrobia dolichia, Bourguignat, Malac. Alg. 1864, p. 236 long. 2? to 2|, 

 diam. 1 mil. Geryville and Boghar ; sect. Maresia. 



5 Edough [B6ne] ; ex c. P. Joly, Esq. 



