28 COCHLOSTYLA-HYPSELOSTYLA. 



4 



C. ACUMINATA Sowerby. PI. 10, fig. 7. 



Impcrforate, ovate-pyramidal, the apex a little obtuse ; solid ; 

 chestnut banded with black, irregularly striated with brownish 

 hydrophanous cuticle, bluish above, the apex pale. Whorls 6, 

 rather flat, the last about equal to four-ninths the entire length. 

 Columella straight, somewhat thickened in the middle, slightly 

 twisted, white. Aperture oval, livid inside, subeffuse at the base ; 

 peristorae simple, brown margined within, a little expanded. (Pfr?) 



Alt. 36, diam. 20; aperture, alt. 18, width 10 mill. 



Ctiyo, Philippines. 



Helix acuminata SOWB., P. Z. S., 1841, p. 39. Bulimus acumina- 

 tus PFR., Symb. ii, p. 110; Monogr. ii, p. 14. REEVE, Conch. 

 Icon. t. 11, f. 60. 



Compare incompta and concinna. 



C. INCOMPTA Sowerby. PI. 10, fig. 6. 



Imperforate, ovate, rather thin, pale brown with two chestnut 

 bands and covered with a thin brownish cuticle. Spire conoidal, 

 obtuse. Whorls 5, slightly convex, the last scarcely shorter than 

 the spire. Columella nearly straight, subdilated, the base some- 

 what truncated, surrounded by a chestnut area. Aperture widely 

 lunate-oval; peristome simple, expanded, the basal margin forming 

 an obtuse angle with the columella. (P/V.) 



Alt. 29, diam. 18 ; aperture, alt. 14, width 10 mill. 



Tablets, Philippines. 



Helix incompta SOWB., P. Z. S., 1840, p. 103. Bulimus incomptus 

 PFR., Symb. iii, p. 85 ; Monogr. ii, p. 15. REEVE, Conch. Icon. t. 

 11, f. 53. 



Seems to be allied to C. concinna and C. acuminata. 



C. PYRAMIDAUS Sowerby. PI. 9, figs. 61, 62. 



Imperforate, oblong-pyramidal, somewhat thick ; tawny, banded 

 with dark chestnut, covered with a streaked deciduous brown 

 cuticle. Spire elongated, apex obtuse. Whorls 5, a trifle convex, 

 the last two-fifths the entire length. Columella somewhat twisted, 

 subdilated, white. Aperture lunate-oval, livid within; peristome 

 simple, narrowly expanded. (-P/V-) 



Alt. 40, diam. 19 ; aperture, alt. 18, width 11 mill. 



Island of Cuyo, Philippines. 



