450 CONID^E. 



deprived of opereula. It is impossible from the shell 

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

 vided with an operculum. 



A. BE LA. 



M. (Bela) turricula, Montagu. 



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

 and angulately scalar : no distinct labial sinus. 



Plate CXI. fig. 7, 8, and (Animal) Plate T.T. fig. 2. 



MureiV turricula, Mont. Test. Brit. vol. i. p. 202, 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. — Dillw. Recent Shells, vol. ii. p. 744. — 

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

 „ anguluius, DoNov. Brit. Shells, vol. v. pi. 1 5(5. 

 Fusus tumcola, Fleming, Brit. Animals, p. 349.— Brit. Marine Conch, p. 201. 

 Pleurotoma turricula, Blainv. Faune Franq. p. 104. — M.4CGILLiv. Moll. Aberd. 

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

 f. 162. 

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



Club, vol. i. p. 23G. — Goui-d, Invert. Massach. p. 292, 

 f. 193. 

 Defrancia nohilis, and scolaris, Moller, Index Moll. Grocnl. p. 12 (from tj'pes). 



„ Woodiana, Moller, Index Moll. Grccnl. p. 13 ? 

 Pleurotoma Trevelliannm (not of Turton), Macg. Moll. Aberd. p. 127? — 



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

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



New York Fauna, p. 149, pi. 3(!, f. 340. 

 Pleurotoma ruf^ulata. 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 31. 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 



