MANGELIA. 483 



M. sTRioLATA, Scacclii. 



Turreted-fusiform, with a dark infrasutural fillet, usually 

 lineated with yellowish brown, with dense but minute spiral 

 striulte, and about nine or ten square-cut straightish longitu- 

 dinal ribs on the principal turns ; mouth not peculiarly con- 

 tracted ; lip only a little thickened ; labial sinus slight. 



Plate CXIV. A. fig. 1, 2. 



Pleurotoma driolata (not Mangelia striolata, Risso, vol. iv. f. 101), Scacchi, 

 Catal. Conch. Neapolit. (1836), p. 12 teste Philippi, 

 Moll. Sicil. vol. ii. p. 168, pi. 26, f. 7 (from type).— 

 Thompson, Ann. Nat. Hist. vol. xviii. p. 384 (no de- 

 scription). — Reeve, Conch. Icon. vol. i. Pluur. pi. 35, 

 f. 320. 

 „ Smitkii, Forbes, Ann. Nat. Hist. vol. v. (1840), p. 107, pi. 2, f. 14 



(badly).— Brit. Marine Conch, p. 198. 

 „ Farranii, Thompson, Ann. Nat. Hist. vol. xv. p. 316, pi. 19, f. 3. 



Murex Smitldi, Clark, Annals Nat. Hist. 2nd ser. vol. vii. p. 127. 



The characters of this rare shell are allied to those of 

 costata and coarctata, but its form is more turreted than in 

 either of them. It is moderately strong, but little shin- 

 ing, and of a whitish or pale ochraceous hue, marked 

 beneath the suture with a livid or chocolate brown re- 

 volving fillet, and sometimes likewise, with a second 

 narrow zone, that winds rather below the middle of the 

 body-whorl ; numerous tawny spiral lines, that are occa- 

 sionally, however, almost obsolete, adorn the principal 

 volutions. When quite fresh, the surface is seen under 

 the lens to be most densely encircled with scarcely elevated 

 minute strise, besides which several (about nine or ten on 

 the larger turns) strongly projecting remote and narrow 

 ribs, that are neither arched towards their base, nor at 

 all flexuous, traverse the whorls lengthways from top to 

 bottom, and reach to the extreme base of the body ; their 



