COCHLOSTYLA-CALOCOCHLEA. 



oblique, compressed, excavated, white. Aperture diagonal, obliquely 

 truncate-oval, milk-white inside; peristome thin, margins conniving, 

 the right one scarcely expanded, basal thickened, narrowly reflexed, 

 forming an obtuse angle with the columella. 

 Alt. 40, diam. 57 mill. (Pfr.) 



Philippines. 



H. generate PFR., P. Z. S. 1854, p. 123 ; Novit. Conch, i, p. 2, 

 t. 1, f. 6 ; Monogr. ii, p. 206. REEVE, Conch. Icon., f. 1349. 



C. CIIRVSOCHILA Sowerby. PL 34, figs. 9, 10. 



I in perforate, globose-subdepressed, solid; surface delicately 

 striate-obliquely, having microscopic spiral lines above, and some- 

 times obscurely malleated. Bright greenish-yellow, the earlier whorls 

 tinged with rufous ; suture edged with a white line ; no hydrophanous 

 cuticle ; lip broadly reflexed, yellow. 



The spire is somewhat conoid, apex very obtuse, whorls nearly 5, 

 the last slightly descending and then ascending in front. Aperture 

 large, white inside ; lip broadly expanded, yellow; columella thick, 

 yellow, expanding in a concave white callus. 



Alt. 39, diam. 43 mill. 



Calayan, Philippines. 



H. chrysocheila SOWB., P. Z. S. 1841, p. 3. PFR., Monogr. i, p. 

 248 ; Conchyl. Cab., p. 275, t. 44, f. 5, 6. REEVE, Conch. Syst. ii, 

 p. 163, f. 1 ; Conch. Icon., f. 25. Cochlostyla chrysochila SEMPER, 

 Reis., p. 175. HIDALGO, Journal de Conchyl. 1887, p. 125. 



A large, smooth yellow species, altogether lacking hydrophanous 

 cuticle, and with a yellow lip. 



(3). Group of C. polillensis. 



< . POLILLENSIS Pfeiffer. PI. 32, figs. 43-50. 



I in perforate, globose-conoid, somewhat solid, nearly smooth; 

 ground-color varying from light-yellow to reddish-chestnut, plain or 

 having 2 to 4 band- : covered with a light brown or creamy 

 hydrophanous cuticle, which generally forms a finely checkered 

 pan. TII without any conspicuous bands. Columella having a strong 

 {<>/<! near //* iii.wrlion. 



Tin- contour varies much. Whorls 5-j, the last scarcely descend- 

 in.-- in front. Aperture oblique ; lip reflexed and somewhat thick- 



