Hri'llVMA. 71 



ralndind iinfrtira, Bravd, Coq. Paris, 181."), p. 18.'5, ])1. 7, fiji'. 2. 

 l\di(dinitjaculattjr, Stiider, Kiiiz. Verz. 1820, p. 91. 

 Turbo (eiituriildfug, Slie])pard. Trans. Linn. Soc. xiv, 1823, p. 152. 

 Jtlthi/niaJacHlafor, Risso, Ili.st. Xat. Yaw. ^Ith-id. iv, 1826, p. 100. 

 I'aludina tenfamlatu^ Flfniiiiji, \W\i. Anini. 1828, p. ?>!/). 

 Jiif/iinid teiifaciildia. Gray, Turtoii Man. 1840, p. 9.'}, pi. 10, fig. 120. 

 Jiithinia {Eioua) fentactclata, Moquin-Tandoi), Ilist. Moll, ii, 18-"j5, 



p. 528, pi. .'59, tio-.«. 23. 24. 

 Byt/tinia tmiacuhtta, lleeve, Brit. L. & F. W. Moll. 1803. p. 189. 



"iSliell: conically ovate, with a nnmite nearly closed uinbilic-iis, 

 fulvous green, subtvatisparent, apex rather sliarp ; w liurls live, 

 smooth, convex, the last rather ventricose ; apertiu'e somewhat 

 ])yriforiiily ovate, lip clark-edced. scarcely reflected. Operculum 

 subtestaceous, striated concentrically around a central nucleus." 

 [Reeve.) 



Hah. Throughout Europe (in gentle streams and si ill \Aaters). 



Nevill gives the following variety without other description 

 than the dimensions : — 



Var. kashmirensis. 



Alt. 7. diaiii. 4"5 mm. 



Hah. Kashmir {,'^tulltzla() ; Srinngar (Kashmir) ( T/nohald ?). 



141. Bithynia cerameoponia {BensoH). 



BUInjiiia ceraincdpoma (Benson), Gleanings in Science. Calciitla, 

 ii, p. 12o (name for sp. in vol. i, p. 362j (as Palndhin) ; .1. A. S. B. 

 xxiv, 180."), p. 131. 



BUhiitiia cminoxpntuna^ PVauenfeld, \'erhandl. zool.-bot. ^Vien, 

 1862, p. 1 150; II. & T., C. I. pi 38, tigs. I, 4. 



Orif/inal description: — Small, ovate-oblong, whitish -yellow, 

 subbyaline, the lip at the base of the columella slightly produced; 

 o{)eriukan calcareous. 



The above meagre description may be supplemented by the 

 following, based on a specimen in the British Museum : — 



Shell oblong-ovate, cinereous shading to yellowish white; 

 whorls 5, regularly and rather rapidly increasing, convex, 

 minutely and obsoletely sculptured with very tine, spiral striie 

 and marked with i-ather weak growth lines ; suture well im- 

 ]>ressed ; umbilicus moderately narrow, deep; labrum continuous, 

 slightly rellexed, bevelled within ; aperture a little olilique, ovale; 

 o[)erculum shelly, slightly concave, with subcentral nucleus, 

 having about seven convolutions. 



Alt. 10'75, diam. niaj, 9, diam. min. G mm. 



Aperture: alt. 0, diam. 4"25 mm. 



JJab. Bengal. 



There is in the British jNlusemn a second set of this species, 

 presented by Captain T. Huttou and labelled " Plains — India." 

 The shells in this set are of rather smaller dimensions than those 



