152 COCHLOSTYLA-CALOCOCHLEA. 



slightly descending in front. Aperture oblique, whitish inside; lip 

 narrowly expanded, blackish-brown, rarely white; columella white, 

 wide, short, nearly straight, steeply sloping. 

 Alt. 31, diam. 32 mill, (average specimen). 



Mindoro, Philippines. 



H. roissyana FEB., Hist. t. 104,f. 2-3.--SOWB., P. Z. S. 1840, p. 

 101. PFR., Monogr. i, p. 249 ; Conchyl. Cab. p. 283, t. 47, f. 1-5 ; 

 Novit. Conch, iii, p. 497, t. 107, f. 10, 11. REEVE, Conch. Icon. f. 

 73. Cochlostyla roissyana SEMP., Reis., p. 185. HIDALGO, Obras. 

 MalacoLi, t. 51, f. 1-7. H. rossiana GRAY, Ann. of Phil. (n. s.), 

 ix, p. 412. 



A compact, subglobular species, with narrow, dark lip. The 

 typical form as figured by Ferussac is yellow with dark bands. 



Color-var. lutea Pfr. (pi. 30, figs. 23, 24). Light yellowish, with 

 a lighter band above. 



Color-var. subatra (pi. 30, fig. 28). Body-whorl dark chocolate- 

 brown, a light baud appearing on the penultimate whorl. 



C. INFUSCATA Albers. PI. 30, figs. 20, 21. 



Imperforate, conoid-subglobose, solid, obliquely striated, obsoletely 

 decussated with spiral stride; tawny; spire convex-conoid, whitish 

 above ; suture white-margined. Whorls 5, convex, the last rotund, 

 shortly descending in front, radiated and obsoletely banded with 

 brown ; columellar area chestnut. Columella somewhat sloping, 

 wide, white, subexcavated. Aperture oblique, lunate-rounded, milk- 

 white inside; peristome thick, white, narrowly reflexed, the right 

 margin arched forward. (Pfr. from spec, in coll. Albers.) 



Alt. 24, greater diam. 31, lesser 27 mill. 



Habitat supposed to be Philippines. 



H. infuscata ALB., Mai. Bl. i, 1854, p. 214. PFR., Novit. Conch, 

 i, p. 41, t. 11, f.7, 8; Monogr. iv, p. 211. 



C. MAINITENSIS Hidalgo. PI. 55, fig. 56. 



Imperforate, subglobose, rather solid, smooth, chestnut colored, 

 under an ashen-brown hydrophanous cuticle, transversely darker, 

 obscurely lineated, and at the periphery having a white band. 



Spire moderate, apex obtuse, pale. Suture simple ; whorls 5, a 

 little convex, the last whorl very rotund, somewhat descending in 

 front, half the length of the shell. Aperture rotund-truncate, livid 

 inside; columella oblique, rather wide, depressed-concave, brown, 



