416 MURICIDiE. 



more fathoms, but are mainly eliaracteristic of the coralh'ne 

 region . 



F, IsLANDicus, Chemnitz. 



Fusiform, more or less narrow, smooth, sulcated, or flatly 

 costellated, but not geniculatedly or nodosely corded ; apex not 

 symmetrically coiled : outer lip thin, not expanded. 



Plate cm. fig. 1, 3, and (Animal) Plate S. S. fig. 2. 



Lister, Hist. Anim. Angl. pi. 3, f. 4; Hist. Conch, pi. 913, 

 f. 5. 

 Murex corncus (not of Lixn.), Penn. Brit. Zool. ed. 4, vol. iv. p. 124, pi. 7G, 

 f, 99, — PuLTENEy, Ilutchins, Hist. Dorset, p. 43. — Donov. 

 Brit. Shells, vol. ii. pi. 38.— Mont. Test. Brit. vol. i. p. 2.58. 

 — Maton and Rack. Trans. Linn. Soc. vol. viii. p. 147 (not 

 diagnosis). — Rack. Dorset Catalog, p. 47, pi. 17, f. 5. — 

 DiLLW. Recent Shells, vol. ii. p. 733. — Wood, Lidex Testa- 

 ceolog. pi. 27, f. 107. — Fleming, Edinb. Encyclop. pi. 203, 

 f. 7. 

 „ Islandicus, Gmelin, Syst. Nat. p. 3555. 

 Buccinum canaliculatum gracile. Da Costa, Brit. Conch, p. 124, pi. 6, f. 5. 

 Fusiis Islandicus, Chemnitz, Conch. Cab. vol. iv. p. 159, pi. 141, f. 1312, 1313. 

 — King, Ann. Nat. Hist. vol. xviii. p. 246. — Lam. Anira. 

 s. Vert. (ed. Dash.) vol. ix. p. 450. — Desh. Encj'clop. Mtth. 

 Vers, vol. ii. pt. 2, p. IGO. — Hanl. Young Conch, p. 83. — 

 Gould, Invert. Massach. p. 284. — Dekav, New York Moll, 

 p. 144, pi. 8, f. 185. 

 „ antiquus ! Ceouch, Introd. Lam. Conch, pi. 17, f. 8. 

 „ corfieus, Fleming, Brit. Animals, p. 348. — Forbes, Malac. Monens. p. 2(5, 

 animal. — Johnston, Berwick. Club, vol. i. p. 235. — Macgil- 

 Liv. Moll. Aberd. p. 1(59. — Brit. Marine Conch, p. 200.— 

 Brown, Illust. Conch. G. B. p. 8, pi. 6, f. 7, 9. — Say, American 

 Conch, pi. 29, larger fig. — Kiener, Coq. Vivant. Fusus, pi. 7, 

 f. 2 (apex ?) — Reeve, Conch. Icon. vol. iv. Fusus, pi. 11, f. 43. 

 „ Listeri, Jonas, Hamburgh Nat. Hist. Trans, vol. i. pi. 10, f. 13. 

 Tritonium Islaiidiciim, Loven, Index Moll. Scand. p. 11. — Middend. Malacozool. 

 Rossic. pt. 2, p. 144. 

 „ gracile, LoVEN, Index Moll. Scandin. p. 11 . 

 Fusus ffracilis. Alder, Cat. Moll. Northumb. and Durh. p. 63. 

 Trop7i.o7i ffracilc, Searles Wood, Crag Mollusca, p. 46, pi. 6, f. 10, a — c. 



We are aware that of hite years the ordinary British 

 specimens of this elegant shell have been separated from the 



