150 COCHLOSTYLA-CALOCOCHLEA. 



This species differs from C. damahoyi which it somewhat resem- 

 bles in pattern of coloring, in its constantly brown lip and more de- 

 pressed contour. 



Var. perdepressa (figs. 6, 7, 8). Much more depressed above than 

 the type ; upper surface (under the hydrophanous patches) green- 

 ish-yellow, base dark brown. Dark bands at suture, periphery and 

 and columella. Alt. 25, diam. 42 mill. 



C. MELANOCHILA Valenciennes. PI. 30, figs. 17, 18, 19. 



Imperforate, solid, depressed-globose ; growth-lines delicate ; 

 spiral strise subobsolete. Dark chestnut-brown, with a wide yellowish 

 band above, and a narrow one on the base; apex purple or pink. 

 Hydrophanous cuticle brownish, usually lost by erosion for the 

 greater part. 



Spire low, apex very obtuse ; whorls 5, the last a little descending 

 in front. Aperture oblique, wide, white inside ; lip reflexed, dark 

 brown ; columella white, nearly straight. 



Alt. 31, diam. 44 mill. 



Alt. 34, diam. 36 mill. 



Calapan, Mindoro, Philippines. 



H. melanocheila VAL, in Paris Mus. GRATELOUP, Actes Soc. 

 Linn. Bord., xi, p. 397, t. 4, f. 12. PFR., Monogr. i, p. 258 ; Con- 

 chyl. Cab. p. 276, t. 44, f 9, 10. REEVE, Conch. Icon. f. 80. IT. 

 brunnea SOWB., P. Z. S. 1841, p. 40 (not of Anton). Cochlostyla 

 melanocheila HIDALGO, Journ. de Conchyl. 1887, p. 125. 



A large black-lipped species, intermediate between C. pan and 

 C. roissyana. 



C. CHLOROCHROA Sowerby. PI. 37, figs. 38, 39. 



Imperforate, subglobose, rather thin, tawny or pale brown,, 

 streaked and marbled with white ; covered with an ashen-brown 

 cuticle. Spire semiglobose. Whorls 4J, a little convex, the last 

 obsoletely angular at the periphery. Columella oblique, arcuate, 

 denticulate. Aperture rounded-lunar ; peristome subthickened, ex- 

 panded, brown. Alt. 34, greater diam. 50, lesser 42 mill. (Pfr.) 



Camiguin de Mindanao (Semper) ; Bohol (Cuming), Philippines. 



H. chlorochroa Sow., P. Z. S. 1841, p. 2. PFR., Monogr. i, p. 

 246; Conchyl. Cab. p. 274, t. 44, f. 1, 2. REEVE, f. 27. Cochlo- 

 styla cnlorochroa SEMPER, Reis., p. 187. 



