ITfi COSTELLARIA. 



T. RUBELLA. Ad. and Reeve. PI. 52, fig. 498. 



Yellowish brown. Length, 1 inch. 



Sooloo Archipelago. 

 T. sciTULA, A. Ad. PL 52, fig. 499. 



Yellowish white, sparsely punctate with chestnut. 

 Length, -5 inch, China Seas. 



A 3'oung shell, the position of which is not readily determin- 

 able. 



T. INTERT-ENIATA, Sowb. PI. 52, fig. 500. 



Ash color with narrow chestnut bands. Length, 1 inch. 



Habitat unknown. 

 Possibly = T rectilateris, Sowb. 



T. RUSTiCA, Reeve. PI. 52, fig. 50L 



Whitish, lower part of the shell ash color, with occasional 

 brown dots upon the middle of the whorl. Length, '75 inch. 



Habitat unknoicn. 



A species having no marked characteristics. 



T. Desiiayesii, Reeve. PI. 52, figs. 502-50'!, 486. 



Turreted, with an angle at the shoulder, longitudinal ribs 

 small, rounded, interspaces wider, smooth ; white or ash color, 

 with chestnut revolving bands, usuall}^ tipping the ribs only and 

 thus appearing as rows of spots. Length, '15-1 inch. 



Red Sea, Indian Ocean, Mauritius, New Caledonia, Polynesia. 



First described from a poor specimen, in which the upper 

 portions of the ribs only are distinct, and the bands not well 

 defined. The shell which Reeve figures as T. rigida, Swainson 

 (fig. 504), is synonymous — the true rigida being equivalent to 

 T. semifasciata, Lam. Other sj^nonyms are T. Michaudi, Crosse 

 and Fischer (fig. 505), proposed for T.' rigida, Reeve, not 

 Swainson, T. Dunkeri, Schmeltz MSS., and T. alauda of Sowb. 

 (figs. 50(5, 507), not Quoy, Vo}-. Astrol. as (pioted by Sowerby — 

 no such species occurring in that work, I figure also, a variety 

 of uniform dark chocolate color. 



T. AMANDA, Reeve. PI. 52, fig. 508. 



Ribs crossed l)y fine revolving striae, a little nodulous next the 



suture ; alternately banded with light chestnut and white. 



Length, '5 inch, 



Indian Ocean, Philippines, Polynesia. 



