64 CALYPTRJSD^. 



13. coRiiuaATA, f. 91, 92, Reeve. — Acute conica, tenuis, 

 trochiformis, radiatim rugose lirata, albida ; spira elevata, 

 anfractibus quaternis profundis, margine basali dentato, 

 lamina interna basali profunde subsidenti ; margine sub- 

 arcuatim producto. — Closely allied to T. radians and T. 

 spirata, but light in colour and structure, with finer ribs 

 and marginal fluting. 



14. EADiANS, f. 95, 96, 99, Lamarck. — Subdepresso-conica, 

 extus fulva, epidermide tenui induta, intus alba, maculis 

 magnis purpureo-castaneis picta, margine fulvo maculato ; 

 anfractibus quinis convexiuscuKs ; costis di stantibus hinc illinc 

 divaricatis oblique radiatis, margine dentato, ultra septum 

 basale extenso ; margine laminae basalis leviter producto, 

 undato. — The rayed ribs are oblique and sometimes divergent, 

 and the four whorls are wide and a little convex. The 

 elevated spire of fig. 99 is abnormal. 



15. SPIRATA, f. 97, 98, Forbes. — Conica alta fumoso- 

 fusca, septo radiatim fasciata ; anfractibus quinis, ad suturam 

 concavis, tum tumidis, fere perpendiculariter costata, costis 

 prominentibus distantibus ; margine laqueatis ; septo basali 

 radiatim fasciato, margine subangulatim producto. — The 

 narrower whorls, the concave suture, the more prominent and 

 straight ribs, and general dark chocolate colour distinguish 

 this from the preceding species. 



16. LAMELLOSA, f. 41, A. Adams? — Rotunda depressa 

 parva subsquamata ; apice laterali ; septo quasi incipienti, 

 angustissimo, lateraliter decumbenti. — A very small shell, 

 in which the septum appears rudimentary. 



17. SORDIDA, f. 49, 50, Broderip. — Parva, sordide lutea, 

 depressa, ovata, radiatim costata ; anfractibus tribus regu- 

 laribus ; septo subtrigono, dolabriformi. — With the external 

 form of a regularly spiral shell of several distinct whorls, and 

 the hatchet-shaped septum of T. conica, T. sinensis, &c. 



18. UNGUIS, f. 47, 48, Broderip. — Parva livido-fusca, 

 laxe spirata ; apice elevato acuminato, laxato ; septo subtri- 

 gono, arcuatim dolabriformi. — The loosened coils of the 

 apex remind one of a little snake. The hatchet-shaped 

 septum as in the preceding. 



19. HELicoiDEA, f. 53, 54, Soiuerby. — Subaurantia, ob- 

 lique subglobosa ; spira elevata, anfractibus tumidis obliquis, 



