CALLIOSTOMA. 355 



aperture subquadrate ; columella straight, subtruncated anteriorly ; 

 aperture white inside. (Ad.) 



Island of Ticao, Philippines, 6 fins. 



Z. ticaonicus AD., P. Z. S. 1851, p. 167. REEVE, Conch. Icon., 

 f. 43. 



C. DECUSSATUM A. Adams. PI. 17, fig. 33. 



Shell elevated-conic, sub perforate, whitish, ornamented with green 

 longitudinal ruaculations ; whorls plane, margined and a little prom- 

 inent at the base ; sculptured with granulate cinguli, decussated by 

 elevated longitudinal lines ; last whorl angulate, base a little convex, 

 ornamented with granulate cinguli ; aperture subquadrate ; columella 

 straight, truncate at base. (Ad.) 



Calipan, Mindoro, 12 fins. 



Z. decussatus AD., P. Z. S. 1851, p. 167. REEVE, Conch. Icon., 

 f. 65. 



C. JAPONKTM A. Adams. PI. 17, fig. 25. 



Shell turreted-conic, smooth, shining, imperforate; whorls plane, 

 with two impressed lines at base, the last angulate, red with white and 

 yellow flam mules, base convex, sculptured with articulated cinguli ; 

 aperture subquadrate, iridescent green inside. (Ad.) 



Japan. 



Z. japonicus AD., P. Z. S. 1851, p. 167. REEVE, Conch. Icon., 

 f. 49. 



Compare Cantkaridus hilaris Lischke, antea, p. 130. 

 C. uxrcrxrruM A. Adams. PI. 17, fig. 34. 



Shell turreted conical, imperforate, buff; whorls plane, subim- 

 bricating, ornamented at base with slightly prominent cingulus 

 articulated with red, and close transverse lines ; last whorl angulate, 

 base produced, sculptured with concentric lines and an elevated 

 articulated cingulus ; aperture subtrigonal, columella straight, sub- 

 canaliculate at base. (Ad.) 



Lord Hoods Island, on pearl oysters, 8-10 fins. 



Z. unicinctus AD., P. Z. S, 1851, p. 167. REEVE, Conch. Icon., f.. 

 58. 



C. PICTURATUM A. Adams. PL 17 ? fig. 38. 



Shell turreted-conical, imperforate, green or violaceous, ornamented 5 ! 

 with undulating bands and zizgag lines ; whorls plane, basal manrin 

 crenulated, sculptured with transverse impressed lines ; last whorl 



