COCHLOSTYLA-CALOCOCHLEA. 141 



streaks of white hydrophanous cuticle, and with a peripheral (some- 

 times also a basal) interrupted band of the same, these hydrophanous 

 markings are usually partly lost in adult shells. 



Whorls 4*, the last a little descending in front. Aperture large ; 

 lip well expanded subreflexed, thin, white ; columella arcuate, 

 somewhat sinuous. Alt. 33, diam. 35 mill. 



Luzon and Capul, Philippines (Cuming.) 



H. decipiens SOWB., P. Z. S. 1840, p. 96. PFR., Monogr. i, p. 

 251 ; Conchyl. Cab., p. 277, t. 45, f. 5, 6. RVE., f. 23. 



A thin species, having oblique ragged streaks and a narrow band 

 of white cuticle. Our specimens are more globose than the figures 

 on pi. 29. 



(4). Group of C. zonifera. 



C. ZONIFERA Sowerby. PI. 35, figs. 19, 20, 22. 



Imperforate, solid, depressed-globose. Ground-color, under the 

 hydrophanous cuticle, light greenish-buff with (typically) a broad 

 peripheral girdle of dark brown, the upper whorls nearly white. 

 Hydrophanous cuticle cream- white forming two wide uninterrupted 

 bands, one above the other below the peripheral dark zone ; the base 

 below the lower band has no hydrophanous cuticle ; above the upper 

 band it is present in irregular patches, cut by a group of narrow spiral 

 lines which revolve about the middle of the upper surface. 



Whorls 4-4|, the last wide and slightly descending in front. 

 Aperture quite oblique, white (or flesh-tinted) inside ; lip white, 

 roundly reflexed ; columella oblique, straight, deeply inserted. 



Alt. 30, diam. 37 mill. 



Leyte ; La Laguna, Luzon ; Loquilocon, Samar ; Visayes ; Cat- 

 anduanes, E. coast of Mindanao ; Siargas, in the Strait of Surigao ; 

 Philippines. 



H. zonifera SOWB., in sched. Cuming. PFR., Monogr. i, p. 251 ; 

 Conchyl. Cab., p. 280, t. 46, f. 3, 4. REEVE, Conch. Icon., t. 9. f. 

 3. Cochlostyla zonifera MARTENS, Ostas. Landschn., p. 94, with var. 

 purpurascens and modestior. Cochlostyla zonifera SEMPER, Reis. 

 Phil., p. 177, t. 18, f. 9 (anatomy). HIDALGO, Journ. de Conchyl. 

 1887, p. 129. 



A globose-depressed species having abroad zone of creamy cuticle 

 on either side of a darker peripheral zone, the upper surface having 

 irregular patches of creamy cuticle cut by a group of spiral lines. 



