70 PALUDESTKINIDJE. 



Genus LITHOGLYPHUS. 



Lithoglyphugj Hartmann, Sturm's Fauna, 1821, vi, Heft 5, p. 57. 

 TYPE, L. eburneus, Meg. v. Miihlfeld ; Europe. 



Range. Europe ; India ; Tonkin. 



Shell imperf orate, globular with short spire, solid, suture 

 lightly impressed; aperture large, snbovate or nearly circular; 

 labruin simple ; columellar margin callous ; operculum horny, 

 paucispiral, with excentric nucleus. 



139. Lithoglyphus martabanensis, Theobald. 



Lithoylyphus martabanensis, Theobald, J. A. S. B. xxxix, 1870, 

 pt. 2, p. 402, pi. 18, fig. 9; H. & T., C. I. pi. 81, tig. 10. 



Original description : Testa globose coriica, imperforata, solida, 

 virescente albida, translucente, fere laevi, transversim exilissime 

 striata, spira parva, regulari, subobtusa; anfractibus 4|, celeriter 

 crescentibus, ultimo f longitudinalis sequante, apertura elliptica, 

 antice rotundata, postice angulata. Columella callosa, polita, 

 paulo dilatata, labro acuto leviter curvato, antice ad latus 

 eubtruncato. 



Alt. 4 mm. (fig. in Conch. Ind.). 



Hob. Martaban. 



Subfamily BITHYNIIN.E [Bilhmiina emend.]. 



Animal with simple foot; rachila \\i\ln several basal denticu- 

 lations ; penis bifid; operculum calcareous, concentric. 

 Distribution. Europe; Asia. 



Genus BITHYNIA. 



Bithynia, Leach, in Abel's " Narrative of Journey into Interior of 

 China," 1818, p. 362. 



TYPE, Helix tentaculata, Linnaeus ; Europe. 

 Range. Europe; Asia. 



Shell small, ovately fusiform with more or less convex whorls ; 

 aperture oval ; labrum continuous ; operculum testaceous. 



140. Bithynia tentaculata (Linnaeus). 



Helix tentaculata, Linnseus, Syst. Nat. ed. 10, 1758, p. 774. 

 Neritajaculator, Miiller, Verm. Hist. pt. 2, 1774, p. 185. 

 Turbo nucleus, Da Costa, Brit. Conch. 1778, p. 91, pi. 5, fig. 12. 

 Bulimus tentaculatus, Poiret, Coq. de 1'Aisne, 1801, p. 61. 

 Cyclostoma impurum, Draparnaud, Tabl. Moll. 1801, p. 41. 

 Turbo janitor, Vallot, Exerc. d'Hist. Nat. 1801, p. 6. 

 Cyclostoma jaculutor, Ftirussac, Ess. Meth. Conch. 1807, p. 66. 

 Lymncea tentaculata, Fleming, Edin. Eucyc. vii, 1814, p. 78. 



