176 TURRITELLIDiE. 



From the Indian Ocean ; introduced hy Lister as procured from 

 the Scarhorough fishermen. 



T. IMIiKICATA, LinilKUS. 



Seba, Thesaur. vol. iii. pi. oG, f. 13. 

 Ttirho imbricatus, LiNN. Syst. Nat. ed. 12, p. 1-239. — Schroter, Einlcit. Conch, 

 vol. i. pi. 3, f. 21.— DiLLW. Recent Shells, vol. ii. p. 86!?. 

 „ imricgatus, LiXN. Syst. Nat. ed. 12, p. 1240. — Dili.w. Recent Shells, 



vol. ii. p. 872. 

 „ lerehra, DoNov. (not Linn.) Brit. Shells, vol. i. pi. 22, f. 2. 

 Turritella imhricuki. Lam. Anim. s. Vert. (ed. Desh.) vol. ix. p. 253. — Kiener, 

 Coquilles Vivantes, Turrit, pi. 9, f. 2. 

 „ variegata. Reeve, Conch. Iconic, vol. v. Turrit, pi. 5, f. 1.0. 



A West Indian shell figured hy Donovan for T. communis. 

 T. cixcTA, Da Costa? 



Lister, Hist. Conch, pi. 592, f. 60. 

 Sirombi/ormis cindus. Da Costa, Brit. Conch, pi. 7, f. 8 ? 

 Turbo einctiis, Donovan, Brit. Shells, vol. i. pi. 22, f. 1.— Mont. Test. Brit, 

 p. 295. 

 „ exoletus, Maton and Rack. Trans. Linn. Soc. vol. viii. p. 176. — Turt. 



Conch. Diction, p. 216 ^Dillw. Recent Shells, vol. ii. p. 870. 



—Wood, Index. Testae, pi. 32, f. 136. 

 Turritella bicimjuluta. Lam. (not Crouch) Anim. s. Vert. (ed. Desh.) vol. ix. 

 p. 256. — Brit. Marine Conch, p. 189. — Kiener, Co- 

 quilles Vivant. Turrit, pi. 8, f. 2. — Reeve, Conch. 

 Iconica, vol. v. Turrit, pi. 5, f. 20. 

 „ exoleta, Fleming (not Lam.), Brit. Anim. p. 302. 



From Africa, cl-c. ; said to have been taken at Sandudch, 

 Lincolnshire, and Lancashire. 



CCECUM, Fleming. 



Shell, when young, discoid ; when adnlt, tubular, cylin- 

 drical, arcuated, terminating anteriorly in a round mouth 

 with entire margin, posteriorly by an obtuse rounded or 

 mammillatcd septum, marking the point at which the 

 original spire has been cast off. Operculum corneous, mul- 

 tispiral, edges simple. 



