458 coNiD^. 



have taken it alive in ten fathoms in the Hebrides 

 (M'Andrew and E. F.) ; it lias also been taken in Loch 

 Fyne (Barlee), and at Oban (Jeffreys). It wonld appear 

 to be found on both sides of the Atlantic. We have 

 found it among pleistocene fossils in Ireland. 



M. (Bela) septaxgularis, Montagu. 



Remarkably solid, of an uniform lighter or darker livid flesh 

 colour ; whorls with seven broad continuous longitudinal ribs, 

 otherwise smooth : outer lip thickened. 



Plate CXII. fig. G, 7, and (Animal) Plate T.T. fig. 3. 



Murex costatus, PaLTENEV, Hutchins, Hist. Dorset, p. 43. — Rack. Dorset 



Catalog, p. 46. 



„ septanrjularis, Mont. Test. Brit. p. 268, pi. 9, f. 5 ; Siippl. p. 115.— 



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



— TuRT. Conch. Diction, p. 92. — Dillw. Recent Shells, 



vol. ii. p. 744 Wood, Index Testaceolog. pi. 27, 



f. 132. — Cl.uik, Annals Nat. Hist. 2nd ser. vol. vii. 

 p. 113. 

 „ septemangulatus, DoNov. Brit. Shells, vol. v. pi. 179, f. 4. 

 Fusus septangtilaris, Fleming, Brit. Animals, p. 350. — Brown, Illust. Conch. 



G. B. p. 7, pi. 5, f. 11. 

 Pkurotoma „ Blainv. Faune Fran9. Moll. pi. 4, f. 4. — Brit. Marine 



Conch, p. 196. — KiEXER,Coq. Vivant. Pleurot. pi. 26, 

 f. 3. — Philippi, Moll. Sicil. vol. ii. p. 169. — Reeve, 

 Conch. Iconica, vol. i. Pleurot. pi. 25, f. 322. 

 „ heptayona, Scacchi, Notiz. p. 42, pi. 1, f. 9; Cat. p. 11 (teste 



Philippi). 



The peculiar contour of this interesting species renders 

 it easily recognisable. It is very solid, opaque, more or 

 less shining, and of a lighter or darker livid flesh-colour, 

 that is not variegated, but merely becomes paler on the 

 ribs, so that in the more pallid examples they are white or 

 nearly so ; sometimes, too, there is a very obscure and un- 

 defined whitish band beneath the sutures. The shape is 

 turreted above, bluntly and abbreviatedly semifusiform 



