to rALUI)ESTllI>"ID.'E. 



151. Bithynia goniomplialos {Mordct). 



Bitluj)ti(i goniomphalos (Morelet), Rev. et Mag. Zool. 1866, p. 167 



(as Paltidina) ; Ser. Couch, iii, pi. 13, \\<x. 4. 

 BWnjnia irawadica, Blanford, P.' Z. S. 1869, p. 446 : H. & T., C. I. 



pi. 37, fig. 10 (as litjthhna irmvadica) ; Nevill, in .7. Anderson's 



Anat. & Zool. Researches during Yunnan Exp., Calcutta, 1878 



[1879], p. 890. 



Or'ujhud description : — Testa riraato-perforata, oblongo-conoidea, 

 solidula, sub lente subtilissime decussata, paruin nitens, viridi- 

 f usca ; spira elongato-conica, apice truncata, anfr. superst. 4^ 

 convexi, ultiinus circa pert'orationem compresso-carinatus, spiram 

 non sequans ; apertura ovalis, basi angalata, intus lilacina. mar- 

 ginibus fusco aiiguste linibatis. Operculum testaceum, extus 

 concentrice lanielloso-striatum, intus candidum. 



Alt. 14, diam. 7 iiiui. 



Hah. Cochin China [Moreld) ; marshes and rivers round 

 Mandalay {Blanford). 



152. Bithynia evezardi, Blanford. 



Bif/n/ma evezardi, Blanford, J. A. ^^. B. xlix, pt. 2, p. 220 ; Nevill, 

 op. cit. 1, pt. 2, p. lo7, pi. 6, tig. 13. 



Oriqinal description : — Sbell narrowly unibilicate, ovately conical, 

 solid surrouiuled h}^ regular spiral impressed lines rather close 

 together, whitish horny, covered with an olive epidermis. Spire 

 conical, apex eroded, suture deeply impressed. Whorls re- 

 maining 3 (ill a perfect shell about 4 to 5~), rounded, the last 

 about half the whole length, moderately ventricose, angulateiy 

 compressed at the base around the umbilicus, which is conical 

 and smooth inside. Aperture nearly vertical, oval, subangulate 

 in front at the base and at the posterior extremity ; peristome 

 simple, straight, obtuse ; operculum normal. 



Alt. 3-75, diam. maj. 3'25, diam. min. 2 mm. 



Aperture: alt. 2, diam. 1-5 mm. 



Hah. Lanowlee (Lanaoli), on the railway -line between Bombay 

 and Poona, a few miles east ot Khandalla at the top of the 

 Bor-ghat. 



153. Bithynia pygmsea, Preston. 



Bithynia pygmaa, Preston, Eec. Ind. Mus., Calcutta, ii, p. 45, fig. 

 in text. 



Original description: — Shell ovately fusiform, dark olive-brown; 

 ^Yhorls 3g, convex, smooth; sutures well impressed; aperture 

 oval; peristome simple, continuous ; umbilicus narrow; operculum 

 shelly, spiral wath central nucleus. 



Alt. 3-25, diam. maj. 2 mm. 



