WOLLUSCA OF IXDIA. 259 



Shell very depressedly conoid, subangulate on the periphery, 

 very narrowly perforate, thin and fragile ; sculpture quite smooth ; 

 colour milky-white ; spire moderately elevated, apex blunt ; suture 

 moderately impressed ; whorls 4|, regidarly increasing ; aperture 

 narrowly quadrately lunate ; peristome thin ; columellar margin 

 suboblique. 



Size : maj. diam. 12'75, min. 11*0 ; alt. axis 5-25 mm. 



Mostly smooth^ membranaceous . 



Placed in Macroclilamys provisionally, some on dissection of 

 the animal may prove to belong to Cryptaastenia. 



Mackochlamvs bilineata, G.-A. (Plate CXXVI. tig. 9.) 



Macroclilamys bilineata, G.-A., J. A. S. B. 1876, 2, p. 311, pi. 8. 

 fig. 9. 



Paun. Brit. Ind., Moll. (1908), p. 103. 



Locality. Tanir Lampa ridge, 4000 ft. ; Dafla Hills, North 

 Assam. 



Description of the animal: — "The foot pale ochraceous ; ten- 

 tacles black, the black extending on to the neck as two very 

 conspicuous, well-defined, parallel lines ; the upper part of tlie 

 foot has also two parallel black lines. From the right anterior 

 margin a long tongue-like process is given off which reaches, 

 when iully extended, up to the apex of the shell." 



Size of a large shell: maj. diam. 13, min. 11; alt. axis 6-5 mm. 



Very abundant in the forest among the fallen leaves. 



Original description : — " Shell globose, very shiny, transparent, 

 greenish yellow ; whorls 5, spire conoid. The living shell appears 

 mottled on the upper surface with black and white, from the body 

 of the animal shining through its thin transparent walls." 



Macrochlamts ? LAHUPAENSis, G.-A. (Plate CXXVI. figs. 3, 

 3 a.) 



Macrochlamifs lalmpaensis, Moll. Ind. ii. 1907, p. 159. 

 Faun. Brit.'ind., Moll. (1908), p. 109. 



Macrochlamys ? suBANGULATA, n. sp. (Plate CXXVI. fig. i.) 



Very near laliupaensis, G.-A. 



Locality. Biirrail Range {Godwin-Austen). 



Shell globosely turbinate, tumid, thin, transparent, very narrowly 

 umbilicated ; sculpture none, surface quite smooth, crossed trans- 

 versely by regular undulations of growth ; colour pale straw ; 

 spire elevated, sides slightly concave, apex sharp ; suture im- 

 pressed ; whorls 5, tJie last mith just a slight indication of a keel ; 

 aperture rotundately oval, nearly vertical : peristome very thin ; 

 columellar margin perpendicular, not thickened, and just reflected 

 near umbilicus. 



