32 PROSOPEAS. 



Stenogyra tchehelensis DE MORGAN, Le Naturaliste, May, 

 1885, p. 69 ; Bull. Soc. Zool. France, x, p. 388, pi. 6, f . 7. 

 Prosopeas t., MLLDFF., Proc. Zool. Soc. LoncL, 1891, p. 337. 

 COLLINGE, Journ. of Malac., ix, p. 83. Stenogyra (Opeas) 

 terebralis NEVILL, Hand-list Ind. Mus., 1878, p. 166. 



The disparity in sculpture between the earlier and later 

 whorls is characteristic. The apical whorls (fig. 8) are not 

 costulate. The above description is from a specimen received 

 from M. de Morgan. Dr. von Moellendorff considers 8. swet- 

 tenhami synonymous. 



Mr. Collinge states that the eggs are exceedingly large for 

 the size of the animal, and are enclosed in a hard, calcareous 

 shell. Specimens having 8 whorls were found to be sexually 

 mature. The largest shell met with was one with 12 whorls. 



28. P. SWETTENHAMI (de Morgan). PI. 4, figs. 11, 12. 

 Shell subulate, elongate, brown, corneous, obtuse at the 



summit, composed of 12 or 13 whorls which are very regularly 

 convoluted and ornamented with fine striae along the growth- 

 lines; suture linear and well marked, covering a very obtuse 

 carina on the preceding whorl. Aperture oval, oblique ; peri- 

 stome straight and acute, the columellar margin reflexed. 

 Length 29, diam. 5, length of aperture 6, width 3 mm. Eggs 

 spherical, calcareous, .5 mm. in diameter (de Morg.). 



Perak: Mt. Tchora, near Ipoh, in crevices of the ro-cks (de 

 Morgan) . 



Stenogyra swettenhami DE MORG., Bull. Soc. Zool. France, 

 x, 1885, p. 389, pi. 6, f. 6. 



"This species is distinguished from S. tchehelensis by its 

 cylindric shape and by having a carina on the lower part of 

 the whorls of the spire. ' ' 



29. P. HEBES (Blanford). PI. 12, fig. 6. 



Shell imperforate, turrited, corneous, rugose-striate. Spire 

 subulate, the apex very obtuse, suture whitish-edged. Whorls 

 7, but little convex, the last about one-third the length, 

 rounded basally. Columella a little calloused, a trifle twisted, 

 short. Aperture nearly vertical, long-oval ; peristome simple, 



