4i8 Records of the Indian Museum. [Vol. XVI, 



1890. Fenoiiillia bicingidata, id., op. cit., p. 172, pi. x.wiii, fig. 11. 

 1904. yiillienia carinata, Fulton, Joiirn. Malac. XI, p. 52, pi. iv. 



The species has been described from three different lakes in 

 Yunnan, as Lithoglyphus kreitneri from Erh-Hai (TaU Fu Lake) , 

 as Fenouilia bicmguJata from Lake Hai Si in the same district and 

 as Jullienia carinata from Yunnan Fu Lake (K'un-Yang Hai) some 

 distance further east. The specimens we have examined are from 

 the first and the last of these lakes. The shells from Erh-Hai are 

 smaller and apparently thinner than the types of the species from 

 the same lake and also than those named b}^ Fulton JiiUienia 

 carinata and there is less variation among them than was the 

 case in Neumayr's specimens. Several of them, however, possess 

 a varix across the body-whorl as in Heude's type- specimens of F. 

 hicingulata. We see no reason to think that specimens from the 

 three lakes represent more than one species. It is unnecessary for 

 us to redescribe the shell, but for convenience's sake we give a 

 translation of Neumayr's description. 



''Shell small, blunt, conico-ovoid, stout, dextral, non-um- 

 bilicate, consisting of four whorls sharply separated by an im- 

 pressed suture ; upper whorls convex, but the last flattened. Shell 

 sculptured with stout growth-lines and with 1-2 spiral keels ; base 

 flattened. Mouth shortly ovoid, pointed and strongly contracted 

 above^ strongly recurved below ; peristome continuous ; inner lip 

 swollen, outer lip. quite sharp. Shell covered with an olive-green 

 epidermis." 



Neumayr also describes in the same place two varieties, cari- 

 nata and bicarinata, tlii names of which practically explain them- 

 selves. Our specimens belong to the form carinata. 



We have examined a number of specimens in spirit. They 

 are fairly well preserved, but brittle and contracted. The oper- 

 culum is relatively large, very thin, horny, of a pale yellow colour, 

 regularly ovoid, broadly rounded anteriorly and bluntly pointed 

 posteriorly. It has an extremely delicate narrow colourless inner 

 border Its sculpture is obscure, but it is possible to detect the 

 nucleus situated near the inner anterior border and surrounded by 

 a spiral of two or three whorls, above which curved lines radiate 

 onwards to the base of the membranous inner margin. The ex- 

 ternal surface of the operculum is thickly covered with diatoms in 

 all the specimens examined. 



The foot appears to have been broad in proportion to its 

 length, bluntly pointed behind and truncate in front, with a broad 

 lobular antero-lateral process on either side. The operculiferous 

 lobe was relatively large. There is a sharply- defined narrow trans- 

 verse groove running across the sole a short distance behind the 

 anterior margin In a contracted specimen diagnosed by micro- 

 scopic examination of the gonad as female, a distinct longitudinal 

 groove runs along the right side of the body from just behind the 

 tentacle to the base of the operculiferous lobe. When the animal 

 was expanded this groove may have had a vertical or nearly verti- 

 cal direction. 



