148 LITTORINID.E. 



Eulima decussata, Brit. Marine Conch, p. 187.— Macgil. Moll. Aberd. p. 343 ? 

 Rissoa pyramidilla, Brow.n, Illust. Conch. G. B. p. 11, pi. 9, f. 63. 



A common W. Indian shell ; introduced hy Montagu as taken 

 on the Dorset coast hy Mr. Bryer. Its solid and porcelain white 

 structure, its flattened surface, the suhlohated basal advance of the 

 outer lip, and the effuse or suhcanaliculated anterior extremity of 

 the aperture below the pillar, render it very unlike our native 

 Kissoae. We have never seen any examjiles in which the apex was 

 not truncated. 



R. AURiscALPiuM, Liiinseus. 



Turbo auriscalpium, Linn. Syst. Nat. ed. 12, p. 1240. 

 Turritella „ Bosc, Hist. Nat. Coquilles, vol. iv. p, 82. 



Turbo marginaius, Mont. Test. Brit. Suppl. p. 128. — Laskey, Mem. Werner. 

 Sec. vol. i. pi. 8, f. 13.— TuRT. Conch. Diction, p. 213.— 

 Wood, Index Testaceolog. pi. 31, f. 105. 

 „ arcuatus, DiLLW. Recent Shells, vol. ii. p. 859. 

 nissoa aciciila, Risso, Hist. Nat. I'Europe Merid. vol. iv. p. 121, f. 60?— 

 SoWERBv, Genera Shells, Riss. f. 4 ; from which, Reeve, 

 Conch. S3^stem. pi. 208, f. 4 ? 

 „ cwukt, Desmar. Nouv. Bullet. Soc. Philomat. Paris, 1814, p. 8, pi. I, 

 f. 4. — Blaxnv. Man. Make. pi. 35, f. 6 (badly). — Desh. Encycl. 

 Meth. vol. iii. p. 889 ; Lam. Anim. s. Vert. vol. viii. p. 470. 

 — Philippi, Moll. Sicil. vol. i. p. 151. — Payraudeau, Cat. 

 Moll. Corse, p. 110. — Potiez and Mich. Gal. Douai, Moll, 

 vol. i. p. 2GG. 

 Cingula marginata, Fleming, Brit. Anim. p. 306. — Brit. Marine Conch, p. 176. 

 liissoa auriscalpium, Menke, Synopsis Mollusc, (ed. 2), p. 44 (identification 

 only). — Philippi, Moll. Sicil. vol. ii. p. 125. 

 „ marginata. Brown, Illust. Conch. G. B. p. 11, 13, pi. 9, f. 23, 24, 83. 



A Mediterranean shell ; introduced by Montagu as taken by 

 Laskey near Dunbar. 



R. cALATHiscus, Montagu. 



Turbo cimex, Linn. Syst. Nat. ed. 12, p. 1233, from types. 



„ ccdathiscus, Mont. Test. Brit. Suppl. p. 132 (not var.), pi. 30, f. 5. — Turt. 

 Conch. Diction, p. 211. — Dillw. Recent Shells, vol. ii. 

 p. 821.— Wood, Index Test. pi. 30, f. 16. 

 Alvania Europcea and mamUlata, Risso, Hist. Nat. Europe, Mer. vol. iv. f. 1 16, 



128. 



