242 



DESCRIPTION OF A SUPPOSED NEW SPECIES OF 



PLACOSTYLUS. 



By Hugh C. Fulton. 



Read 8th January, 1915. 



Placostylus (Callistocharis) sdbuoseus, n.sp. 



Shell very narrowly umbilicate, oblong-ovate, moderately solid, of 

 a pale pink ground colour witli a tliin, pale greenish cuticle on the 

 last half-whorl, the latter ornamented by irregular longitudinal 

 markings of a darker green ; apex somewhat obtuse ; nucleus very 

 finely punctured ; whorls five, convex ; aperture elongately oval, 

 liglit orange colour within, of a deeper shade near the outer margin ; 



A 



peristome expanded, Avliitisli ; columella wliite, triangularly 

 expanded at the upper part; columellar plait rather flat and thin, 

 not nodiiled. Alt. 44, diam. maj. 20 ram.; height of aperture (with 

 peristome) 26 mm. 



IJab. — Viti Islands (Goilefi'roy iliiseum). 



Similar in form to F. gracilis, Brod., but a little narrower, and with 

 decidedly weaker sculpture. The aperture is relatively longer than 

 in F. guamensis, Garr., and shorter than that of gracilis ; it diff'ers 

 from both in coloration and in the shape of its columellar fold 

 or plait. 



