372 On Land-Shells from the Island of Muswar. 



Papuina pratti, Fulton, sp. n. 



Shell pyramidal, narrowly but deeply umbilicated, greatest 

 width of umbilicus under 2 mm. ; moderately thick, creamy 

 white, with a narrow reddish-brown band commencing about 

 the third whorl and continued to edge of peristome, almost 

 smooth, lines of growth inconspicuous, irregularly minutely 

 granulated below the last whorl (this character is more or 

 less present on other specimens than type) ; whorls 5§, con- 

 vex above, decreasing in convexity below, last sharply 

 keeled, suture of middle whorls slightly marginated ; peri- 

 stome white, rather broadly expanded, especially at columellar 

 portion, very oblique, exterior band showing through the 

 aperture. 



Maj. diam. 29, alt. 19^ mm. (type). 



Another specimen : maj. diam. 26^, alt. 16 mm. 



Hob. Muswar Island, Geelvink Bay, Dutch New Guinea. 



This shell belongs to the group of vitrea, Fer., and pseudo- 

 lanceolata, Dtz. ; it is readily distinguished from the former 

 by its higher spire and its thicker shell, and from the latter 

 by its greater height in proportion to its width, its less ex- 

 pansion of peristome at the keel, and from both by its less 

 rapidly increasing whorls and its sutural colour-band. 



Papuina rttfopurpurea, Mlldff. 



This species is very variable in coloration ; besides the 

 dark brown typical form the Muswar Island specimens include 

 a variety of a light yellowish-brown ground-colour, with a 

 daik sutural band and pinkish-white peristome. 



Calycia crystallina, Rve. 



This is a species that varies a good deal in form, and I am 

 convinced that isselliana, Tapp.-Canefri, is not separable. 



Calycia crystallina, Rve., var. nigrescens, Fulton, var. nov. 



This variety is similar to typical crystallina except that 

 instead of a white ground-colour ornamented with opaque 

 white lines it has a dark brown ground-colour ornamented 

 by numerous white spiral lines. 



Maj. diam. 30, alt. 44 mm. 



Leptopoma muswarensis, Fulton, sp. n. 

 Shell globose-conic ; narrowly umbilicated, moderately 



