110 COCHLOSTYLA-CORASIA. 



microscopic spiral lines, scarcely visible on the last whorl. Spire 

 very low, apex flat. Whorls 3, the last scarcely descending in 

 front, and encircled by an acute, compressed white keel. 



Aperture oblique; lip white, narrowly reflexed throughout, 

 dilated at the columellar insertion closing the axial perforation. 

 ' Alt. 17, greater diam. 35, lesser 27 mill. 



San Christoval, Solomon Is. 



H. aphrodite PFR., P. Z. S. 1859, p. 26, t. 44, f. 2 ; Mai. Bl. 1859, 

 p. 27 ; Monogr. v, p. 308, 499. 



A depressed, light, (7aroc0^s-shaped shell, having much the 

 aspect of G. *virgo of the Philippines. The thin epidermis is 

 apparently caducous to a greater or less degree. The whorl is con- 

 stricted or grooved just behind the expanded upper lip. 



A variety (figs. 11, 12) is smaller, more elevated, the last whorl 

 considerably deflexed at the aperture. 



Alt. 15*, greater diam. 27, lesser 22 * mill. 



C. ANADYOMENE Adams & Angas. 



Shell orbicular, depressed-conic, imperforate, white, covered with 

 a thin, pellucid, straw-colored epidermis. Whorls 4, plane, longitu- 

 dinally very delicately striated ; the last whorl dilated in front, 

 constricted at the lip, at the periphery angulated and ornamented 

 with a conspicuous filiform carina. Aperture subquadrate, callus 

 of the inner lip covering the umbilical region ; outer lip angulated 

 in the middle, margin deeply reflexed and thickened. 



Alt 12*, diam. 25 mill. (Ad. & Any.) 



Guadalcanar and Ugi, Solomon Is. 



H. anadyomene A. & A., P. Z. S. 1864, p. 38. PFR., Monogr. v, 

 p. 308. H. (Corasia) anadyomene SMITH, P. Z. S. 1885, p. 591. 



This species has not been figured. It differs from H. aphrodite in 

 having the whorls more convex, the keel and peristome not opaque 

 white, and the aperture less produced and angular. 



C. PSYCHE Angas. PI. 23, figs. 13, 14. 



Shell imperforate, depressed, thin, obliquely irregularly plicately 

 striated, pellucid, white, covered with a yellowish-brown shining 

 epidermis; spire scarcely elevated, obtuse at the apex; whorls 3, 

 flatly convex, margined at the sutures, the last not descending, 

 prominently keeled at the periphery, flattened above and ventricose 

 below ; columellar margin arcuately descending, narrowly excavated, 



