MANGELIA. 473 



lengths from their bases, which are more separated than is 

 usual in the genus. The foot is large, very long, wide in 

 front, truncated and strongly auriculated, pointed behind, 

 and exhibiting no traces of an operculum. 



This pretty species frequents sandy and shelly bottoms 

 in various depths of water from the commencement of the 

 laminarian zone to as deep as eighty fathoms. It is so 

 generally distributed all round our shores, and from one ex- 

 tremity of the British Isles to the other, that we need not 

 enumerate localities. It has a range from Norway to the 

 Mediterranean. 



M. GRACILIS, Montagu. 



Large, brown, with a white fillet upon the body-whorl, with 

 fine spiral grooves, and about twelve rounded longitudinal ribs : 

 spire scarcely longer than the mouth ; outer lip acute at the 

 edge, with a deep sinus. 



Plate CXIV. fig. 4, and (Animal) Plate R. R. fig. 8. 



Mure-x gracilis, Mont. Test. Brit. vol. i. p. 267, 586, pi. 15, f. 5, Suppl. p. 115. 

 — Maton and Rack. Trans. Linn. Soc. vol. viii. p. 143. — 

 Rack. Dorset Catalog, p. 46, pi. 14, f. 18. — Turt. Conch. 

 Diction, p. 90. — Dillw. Recent Shells, vol. ii. p. 742. — 

 Wood, Index Testaceolog. pi. 27, f. 127. — Clark, Annals 

 Nat. Hist. 2nd Ser. vol. vii. p. 121. 

 „ emarginatus, DoNov. British Shells, vol. v. pi. 169, f. 2. 

 Pkurotoma gracilis, Fleming, Brit. Animals, p. 355. — Brit. Marine Conch, 

 p. 195, f. 40. — Brown, lUust. Conch. G. B. p. 7, pi. 5, 

 f. 1 6, 17 (badly).— Hanl. Young Conch, p. 80.— Philippi, 

 Mol. Sicil. vol. ii. p. 166. 

 „ Comarmondi, Michaud, Bullet. Linn. Soc. Bordeaux, vol. iii. (1829), 

 p. 263 (and Esp. Nouv. Coq. Viv. 1829, p. 4), f. 6.— 

 KiENER, Coq. Vivant. Pleurot. pi. 24, f. 2. 

 „ suturalis, Philippi, Moll. Sicil. vol. i. p. 197. — Reeve, Conch, Icon. 



vol. i. Pleurot. pi. 7, f. 50. 

 „ sinuosum, (not ]\Iurex sitmosus of Mont.) Couch, Cornish Fauna, 



pt. 2, p. 60. 

 „ vulpecula, Desh. Lara. Anim. s. Vert. (ed. Desh.) vol. ix. p. 359. 

 Fttsus elegans. Brown, Illust. Conch. G. B. p. 8, pi. 6, f. 3. 



„ Branscombii, Clark, Ann. Nat. Hist, new ser. vol. iv. p. 425 (young). 



