MUKEX. 371 



pi. 25, f. 19.— Blainv. Faune Frani;. Mol. p. 127, pi. 5, 

 f. 1, 2, 3. — Desh. Encyclop. Method. Vers, vol. iii. p. 905. 

 — Philippi, Moll. Sicil. vol. i. p. 208 ; vol. ii. p. 181. — 

 KiENER, Coq.Vivant. Murex, pi. 44, f. 1,2. — Reeve, Conch. 

 Icon. Murex, pi. 3, f. 11. — Middendorff, Malac. Rossic. 

 pt. ii. p. 121. 

 Purpura scalata, 4'c. Martini, Conch. Cab. vol. iii. p. 345, pi. 110, f. 1026, 



1027, 1028. 

 Bucciniim longirostrum j)orcatum. Da Costa, Brit. Conch, p. 133, pi. 8, f. 7. 

 Mttrex ciivjuliferus. Lam. Anim. s. Vert. (ed. Desh.) vol. ix. p. 597, teste 

 Kiener, Coq. Vivant, Murex, pi. 30, f. 2. 

 „ Tarentinus, Lam. Anim. s. Vert. (ed. Desh.) vol. ix. p. 593. — Sowerbv, 

 Conch. Illust. Murex, f. 24. — Kiener, Coq. Vivant. Murex, 

 pi. 44, f. 2. 

 Triton erinaceus, Fleming, Brit. Animals, p. 35(5. 

 Encycl. Method. Vers, pi. 421, f. 4. 



This abundant shell, which is acuminated, and nearly 

 equally so, at both extremities, has an angulated oblong- 

 oval figure, is strong, dull, and either squalid white, or 

 tinged with warm chestnut or ochre ; it is seldom uniform 

 in tint, for the colouring is usually disposed lengthways 

 (and chiefly behind the varices) so as to shade away into 

 the pallid ground, or is distributed partially on the spiral 

 ribs ; sometimes, yet rarely, it is concentrated in two 

 spiral bands that encircle the body. From six to eight 

 varices (most frequently seven) which, in the more charac- 

 teristic examples alternate in prominence, elevate themselves 

 on the surface of each of the principal volutions, and are 

 surmounted by coarse vaulted acute scale-like projections 

 where they are traversed by the revolving ribs. Each of 

 these last, which are very numerous upon the body (the 

 upper three are alone continued, for the most part, upon 

 the other volutions) has generally a single filiform parallel 

 raised line intervening, and all the raised sculpture is squa- 

 mosely decussated by crowded longitudinal lamellar wrinkles 

 that roughen the entire surface of the shell. About two- 

 fifths of the dorsal length is usually occupied by tlie spire, 



