224 GIBBULA. 



T. calUchrous Phil. Zeitschr f. Mai. 1849, p. 149 ; Conchyl. Cab., 

 p. 298, t. 43, f. 15. — f Ziziphinus calUchrous Reeve, Conch. Icon., 

 Monog. Zlziph., f. 60. 



Reeve's species is in all probability a distinct thing. 



G. JAPONicA E. A. Smith. 



Shell wide short conic, deeply perforated, whitish, variegated with 

 dots and spots of brown, base white ; whorls 6, nearly flat, encircled 

 by granose spiral lirse, and cut by oblique strise ; last whorl slightly 

 convex above, acutely angulated and carinated in the middle, plane 

 below the carina, and with about 13 concentric granular lirte, the 

 one around the umbilicus larger than the rest. Umbilicus deep, 

 reaching to the apex, smooth ; aperture oblique, subquadrate, pearly 

 within ; columella slightly thickened, parietal wall with a thin 

 callus. Alt. 5, diam. maj. 8, min. 7 min. {Smith.) 



Gulf of Yado, Japan, lat. 35° 35' K, long. 139° 48' E., 6-25 /ms. 



The keel which encircles the body- whorl runs up the spire in the 

 deep suture. Within the umbilicus, and adjacent to the large 

 granular liration which surrounds it, there is another, but much 

 finer one. (Smith.) 



T. (Gibbula) j(tpo7iicus'E. A. S., Ann. Mag. Nat. Hist. 1875, xvi, 

 p. 110. 



G. YAMADANA E. A. Smith. 



Shell ovate-conical, dull whitish, painted on the lira? with lilac- 

 brown tessellations, somewhat formed into flammules; slightly per- 

 forate ; whorls 5, convex, separated by jH'ofound sutures, ridged by 

 delicate spiral lira; articulated with lilac-brown (5 to 6 on penul- 

 timate, about 20 on the last whorl) ; with oblique incremental lines ; 

 aperture circular, pearly, equalling •] the total length ; columella a 

 trifle thickened ; terminations of peristome joined by a thin callus. 



Alt. 6, diam. 4'> mill. (Smith.) 



Yamada Harbor, Japan. 



The elongate brownish-lilac spots on the lirations are situated 

 somewhat irregularly underneath each other, so as to form flammula- 

 tions. (Smith.) 



T. (Gibbida) yamadanus E. A. S., Ann. Mag. N. H. 1875, xvi, p. 

 111. 



