CALYPTRiED^. 61 



' 7. PECTiNATTTM, f. 31, 32, Carpenter. — Solidum, ovatum, 

 conicum, fulvum, distanter et rude costatum ; apice acute et 

 oblique uncinate ; calyce semiovato flexuoso, uno latere ad~ 

 nato. — Very coarsely ribbed with raised hook-shaped apex 

 pointing upwards to the left. One side of the cup is formed 

 by the wall of the shell, and tlie other two sides by a loop. 



8. coRRUGATUM, f. 33-36, Carpenter. — Eotundum vel sub- 

 quadratum, subdepresso-conicum, pallide fulvum, vel cas- 

 taneum, costis corrugatis radiatum, apice subuncinato, 

 plerumque retrorso. — C. violaceiim, Keeve, with its delicate 

 lilac interior, is not sufficiently distinct to be separated. 



9. RADIATUM, f. 37, 38, Broderip. — Ovato-rotundum, 

 depressum, tenuiter radiatim striatum et purpureo-castaneo 

 radiatum, apice obtuso, subcentrali : calyce semicirculari, 

 profundo ; antice subplanato, retrorsim decumbent!. — The 

 sliell is a rather depressed cone with obtuse subceutral apex, 

 rayed with dark chestnut. The cup is lilac, a half funnel 

 with one straight side, and pressed backwards so as to lie 

 almost against the parietal part. 



10. STRIATUM, f. 39, 40, Say. — Subrotunde quadratum, 

 depressum, oblique radiatim liratum ; apice retrorso, unci- 

 nato, calice subtrigono, lateribus liberis in amentum curvis. 



11. EXTTNCTORIUM, f. 55-60, Lamarck. — Irregulariter ro- 

 tundatum, Iseve, fulvo-grisescens, plerumque spiraliter 

 radiatum ; apice subcentrali, semispirato, uncinate, calyce 

 angustissime infundibuliformi. — The sharply hooked apex 

 and the rays of colour are curved half spirally. 



12. VERRUCOSUM, f. 51, 52, Reeve. — Subdepressum fulvum 

 rude plicatum et verrucosum ; apice obtuso subcentrali, 

 calyce angustissime infundibuliformi. — With the similarly 

 looped calyx of the preceding this species has an obtuse 

 apex and a very wrinkled, warty exterior. 



