PLACOSTYLUS, SOLOMON IS. 79 



i. Lip narrow, white, not much thickened 

 within, hardly expanded. 



e. Slender and long, the columellar fold 

 weak, no parietal tooth. 



kreftti, p. 81. 



e 1 . Stouter in figure, with moderate fold 

 and a parietal tooth, founaki, p. 79. 

 d l . Lip wide or moderate, expanded, gener- 

 ally colored or tinted. 



e. Shell rather thin, the last whorl in- 

 flated ; columellar fold and tooth 

 (when present) rather weak. 



palmarum var. p. 86. 

 e 1 . Solid, oblong, the lip strongly thick- 

 ened within ; columellar fold and par- 

 ietal tooth strong. 



calus, p. 83 ; macgittivrayi, p. 84. 

 e 1 . Surface without microscopic crowded and wavy 

 spiral striae ; columellar fold and parietal tooth 

 well developed. 



d. Oblong; aperture and lip white. 



macfarlandi, p. 83. 

 rf 1 . Stouter; aperture and lip reddish. 



ffuppyi, p. 82. 

 Section Placocharis Pilsbry, 1900. 



Group of P. macgillivrayi. 



This is a group of smooth or but faintly malleated species ; living 

 on the ground ; colors not bright, uniform or with darker streaks, 

 rarely with zigzag or triangular markings. 



P. FOUNAKI (Hombron & Jacquinot). PI. 34, figs. 10-14. 



Shell imperforate, oblong-fusiform, rather thin but strong, glossy, 

 dark chestnut or olive with narrow dark streaks and zigzag yellow 

 lines (sometimes wanting); the spire dull red or pallid and whitish ; 

 surface beneath the cuticle white. Surface smooth, with slight 

 growth-wrinkles and usually traces of transverse malleation. Spire 

 conic, the apex obtuse, occasionally lost by autotomy. Whorls 5-J, 

 the earlier 2^ punctulate, or smooth by erosion, the last convex. 



