40 cardiadjE. 



422.— Chemn. Conch. Cab. vol. vi. p. 169, pi. 10. f. 162, 

 ]63. — Wood, General Conch, p. 211, pi. 50, f. 3. — Lam. 

 Anim. s. Vert. (ed. Desh.) vol. vi. p. 409. — DrLLW. Recent 

 Shells, vol. i. p. 113. — Mawe, Conchology, pi. 7, f. 1. — 

 Hanl. Recent Shells, vol. i. p. 141. — Reeve, Conch. Iconica, 

 Cardium, pi. 6, f. 30. 



A West Indian shell ; introduced by Donovan as taken near 

 Hartlepool, on the coast of Durham. The small specimen, with 

 about fifty (!) ribs, stated in Turtons Dithyra (copied at p. 78 of 

 the British Marine Conchology ) to have been taken alive at Liver- 

 mead, near Torquay, is evidently not this shell, and was, in all 

 probability, only the young of Venus ovata, the fry of tvhich 

 closely resembles a small Cockle. Unfortunately, the original speci- 

 men is lost, and tlie description is inadequate for the determination 

 of the species. In some local collections we find Cardium pyg- 

 mpeum preserved under this name. 



C. muricatum, Linnaeus. 



Cardium murieatum,Lixvimvs, Syst. Nat. ed. 12, p. 1123. — Fleming, Brit. 

 Anim. p. 421. — Chemn. Conch. Cab. vol. vi. p. 185, pi. 

 17, f. 177. — Bruguiere, Enc. Method. Vers. vol. i. p. 

 233.— Wood, General Conch, p. 216, pi. 51, f. 2, 3.— 

 Dillw. Recent Shells, vol. i. p. 120. — Lam. Anim. s. 

 Vert. (ed. Desh.) vol. vi. p. 399. — Index Testaceolog. pi. 

 5, f. 14.— Hanley, Recent Shells, vol. i. p. 132, pi. 5, f. 

 14. — Reeve, Conch. Icon. Cardium, pi. 6, f. 33? 



A West Indian shell ; introduced by Dr. Fleming, who received 

 it from Dr. Coldstream as found at Leith, in Scotland. It had 

 probably been transported in ballast. 



