lilTIIYNIA. /O 



\iu\ parvula. 



J/((f>. Monulabiul ; .huiiipur. 



Xdv. acuminata. 



J/ab. AndaiiKius? {Roepstorff). 



149. Bitliynia nassa, Theoha/d. 



Bifln/ziia luissa, Tlieobald, .1. A. S. R. xxxiv, pt. l', ISl'i"). p. 27"); 

 op. cit., xxxix, pt. jJ, J). 404, pi. 18, tig. 8; H. & T., C. I. pi. .'57, 

 fig-s. 8, S). 



Orhjinal description : — Testa elongala, I iir])Inata, polifa, dia])haiia, 

 solidiuscula. Labio expansiusculo, plica callosa externa iimnita. 

 Anfractibus quiiKpie. 



Alt. 10-1\"), diaiii. O-So nun. 



JfaJ). Shan States. 



A supplementary and fuller description is given in the Journ. 

 Asiat. Soc. Bengal, vol. xxxix, as follows :— 



Testa elongato turrita, polita, dia])liana, solidiuscula, imi)er- 

 forata ; anfractibus 0, lente convexis, sutura siniplici junctis, 

 striis exilissimis incrementi tectis ; ultiuio basi convexiuscnlo : 

 spira breviore ; apertura snbovata, intus la)vi, supra (vel postice) 

 acute angulata, antice rotundata, sensini producra ; labio et labro 

 leviter curvatis, primo paulo incrassato, altero acuto, margine 

 tenui, extra prope margineni costa solidiuscula crassa instructo ; 

 operculo testaceo, ovato, concent rice striato, nucleo subcentrali. 



Alt. 8'5, diain. maj. 6*25 nnn. 



Aperture : alt. 4*75, diam. S'^o nun. 



Hah. Siian States. 



] 50. Bithynia laevis, MureUt. 



Uitln/nia hcclx, Morelet, Ser. Cuiicli. iv, l87o, ]). M'), pi. 13, tig. 2 

 (as Bithinia Ucvis) ; iSevill, Hand J.ist, pt. 2, p. 38. 



Orif/hud description : — Testa superticialiter arciiato-rimat:i, 

 conico-oblonga, corneo-rubella vel lutescens, lineolis spadiceis, 

 distantibus, longitudinaliter notata, nitida, lasvis, apice trunca- 

 tula; anfr. ok convexiuseuli, sutura simplici juncti, ultinuis 

 veutriculosns, circa riniani compressus : apertura ovalis, basi 

 angidata, intus albido-ca'rulea, marginibus crassioribus, obtusiu>- 

 culis, fusco anguste linibatis, coluniellari strictini dilatato. 

 Operculum testaceuui, pagina interna lioniogenea, alba, externa 

 concaviuscula, epiderniide fulva, conceutrice striata iuduta, nucleo 

 subcentrali. 



Alt. 10, diam. "> mm. 



Aperture: alt. 4"") mm. 



Hah. Siau), Cochin China (Morclct) ; Damotha, Moulniciu 

 (Stoliczka cj- Eichthofca). 



