450 CONIDiE. 



deprived of opci'dila. It is impossible from the shell 

 alone to pronounce whether the animal be or be not pro- 

 vided with an operculum. 



J. BEL A. 



M. (Bet.a) turricula, Montagu. 



White or slightly tinged with rose-colour ; whorls flat, abruptly 

 and angulately scalar : no distinct labial sinus- 

 Plate CXI. fig. 7, «, and (Animal) Plate T.T. fig. 2. 



Murex turn'cuhi, Mont. Test. Brit. vol. i. p. 2C2, pi. 9, f. 1 ; Suppl. p. 115. — 

 Maton and Rack. Trans. Linn. Soc. vol. viii. p. 144. — 

 Rack. Dorset Catalog, p. 47, pi. 14, f. 15. — Turt. Conch. 

 Diction, p. 93. — Dillvv. Recent Shells, vol. ii. p. 744. — 

 Wood, Index Testaceolog. pi. 27, f. 1 33. 

 „ aiiffulattcs, DoNOV. Brit. Shells, vol. v. pi. 156. 

 Ftisus turricola, Fleming, Brit. Animals, p. 349. — Brit. Marine Conch, p. 201. 

 Pleurotoma turricula, Blainv. Faune Franq. p. 104. — Maccilliv. Moll. Aberd. 

 p. 171. — Reeve, Conch. Iconica, vol. i. Plenrot. pi. 19, 

 f. 162. 

 Fusns „ Hanley, Young Conch, p. 84. — Johnston, Berwick. 



Chih, vol. i. p. 23G. — Goui.n, Invert. Massach. p. 292, 

 f. 193. 

 Defrancia nolilis, and snilaris, Moller, Index Moll. Groenl. p. 12 (from types). 



„ Woodiatia, Moller, Index Moll. Groenl. p. 1 3 ? 

 Pleurotoma Trevelliamim (not of Turton), Macg. Moll. Abcrd. p. 127? — 



Brown, Illust. Conch. G. B. p. 127, pi. 57, f. I ? 

 Fusus turriculus. Brown, Illust. Conch. G. B. p. 7, pi. 5, f. 51, 52. — Dekav, 



New York Fauna, p. ] 49, pi. 36, f. 340. 

 Pleurotoma rugulata. Reeve, Conch. Icon. vol. i. Pleur. pi. 37, f. 345 (probably). 



There is no British shell with which this pretty species 

 can be confused except M. Trevelliana^ from which it not 

 merely differs by the greater flatness of its whorls, and its 

 longer and more strongly scalar spire, but also in the 

 absence of a sinus from the outer lip. 



It is of a somewhat fusiform oblong shape, rather strong, 

 of an uniform pure white (more rarely pink or pale yellow), 

 and neither shining nor transparent. The exterior is 



