164 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



Melania scrupea, var. debilis, n.var. 

 Compared with typical scrupea this variety is somewhat narrower 

 in form, but chiefly characterized by its mnch weaker sculpture, the 



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oblique plications and spiral cords being much weaker, characters which 

 are constant in the large number of specimens examined by me. 



Melania tultuosa, n.sp. 

 Shell ovatelj' conical, smooth, covered by a blackish-brown cuticle 

 which is minutely roughened by erosion ; spire eroded, about 

 4^h whorls remaining ; aperture oval, acuminate at upper part, bluish- 

 white, with some sti'eaks of dark brown in the direction of the lines 





of growth ; peristome simple, very slightly thickened, and edged 

 with black, margins joined with a slightly raised callus ; operculum 

 normal. Alt. 16, diam. maj. 8 mm. 



Hah. — Yunnan-fu. 



The Planaxis-\\kQ form and absence of sculpture separate this from 

 any other species known to me. 



Melania tsushijiana, n.sp. 



Shell sub-oval, solid, dark brown, spire eroded, leaving three 



remaining whorls ; these are encircled by numerous flat spiral cords 



that are somewhat obsolete above the suture, but stronger below, and 



at the base of the last whorl ; aperture elongately oval, bluish within ; 



peristome thin, effuse at base, and slightly expanded at the columellar 

 margin. Alt. 30, diam. maj. 16 mm. 



Hah, — Tsusliima Islands (Friihstorfer). 



Allied to M. glans, Busch, but readily separated by its narrower 

 form and spiral sculpture. 



