COCHLOSTYLA-HELCIOBULINUS. 197 



Spire conic, obtuse, reddish. Apex planate; whorls 5i, convex, 

 the last slightly descending in front. Aperture large, blue within ; 

 peristome expanded, reddish-brown. 



Alt. 54, diam. 45 mill. 



Alt. 50, diam. 70 mill. 



Luzon, Leyte, Catanduanes and Camarines, Philippines. 



H. turbinoides BROD., P. Z. S. 1840, p. 23. PFR., Mon. i, p. 

 243 ; Conchyl. Cab. p. 264, t. 39, f. 1, 2. RVE., Conch. Syst. ii, t. 

 166, f. 21, 22; C. Ic., f. 6. Cochlostyla turbinoides HIDALGO, 

 Journ. de Conchyl. 1887, p. 139. Chromocochlea turbinoides 

 HARTM., Gast. Schweiz, p. 137, t. 41. 



Differs from the preceding in its red upper whorls, darker lip 

 and columella, etc. 



C. CINERASCENS Pfeiffer. PL 47, fig. 60. 



Imperforate, globose-turbinate, rather thin; straw colored with 

 two wide bands and a blackish basal area, covered with a thin 

 hydrophanous cuticle ; spire short-turbinate, apex obtuse. Whorls 

 5 ?, a little convex, the last inflated beneath. Columella subarcuate, 

 flesh-brown. Aperture round-lunar, white within ; peristome nar- 

 rowly expanded, somewhat thickened, chestnut-edged. 



Alt. 37, greater diam. 41, lesser 35 mill. (P/r.) 



Masbate, Philippines. 



H. cinerascens PFR., P. Z. S. 1845, p. 64; Monogr. i, p. 220; 

 Conchyl. Cab. p. 427, t. 150, f. 1, 2. REEVE, Conch. Icon. no. 78 

 (description), figure 81, not fig. 78 ! 



I have not seen the typical C. cinerascens, but from a study of 

 the figures and descriptions I am wholly inclined to consider H. 

 turbo Pfr. a mere variety of it. Reeve has transposed the figures of 

 these two forms on his plate. 



Var. TURBO Pfr. PL 47, fig. 59. 



Shell turbinate, solid ; fleshy-brown under a straw-colored cuticle, 

 having a peripheral band and a small columellar patch of chestnut. 

 Spire conical, apex obtuse ; whorls 5, the last a mere trifle descend- 

 ing in front. Aperture tinted within ; lip well expanded, brown ; 

 columella steeply sloping, straight, white. Alt. 36, diam. 36 mill. 



H. turbo PFR., P. Z. S. 1845, p. 64; Monogr. i, p. 220; Conchyl. 

 Cab. p. 286, t. 48, f. 1, 2. REEVE, Conch. Icon, no. 81 (descrip- 



