86 



CoRNEUM. Tellina cornea. Lin. Syji. p. 1120. 72. 



Gmeh SyJi. p. 3241. 76. 



Chcin. Conch, vi. t. 13. f. 133. a. b. 



Turt. Lin. iv. p. 197. 



Lifter Conch, t. 159. f. 14.— /</. Ang. t. 2. 

 f. 31. 



Don.Br.SheUs.m.t.96. 



Br. Zool. t. 49. f3b. 



Z,//;. Tra?is. iii. t. 13. f. 39. 40, 

 Tellina rivalis. Midler verm 387 — Gtialt. t. 7. B. C. 

 Cardium Nux. D^z C^iyfj. p. 173. t. 13. f. 2. 

 Cardium corneum. Pult. Cat. Dorfct. p. 31. 

 Cardium amnicum. LI. p. 31 ? 



C. with a thin, pellucid, fub-orbicular, convex fliel!, 

 marked with fine concentric ftrisc; ^iml>o centra], obtufe, 

 with the middle teeth very fmall, lateral laminated ones 

 remote, prominent. Infide fmooth, gloffy blueifh-white : 

 (ize commonly about three-eighths of an inch in length, 

 and fomewhat broader. 



In the river Thames \t is found of extraordinary mag- 

 nitude, frequently above half an inch long, and nearly 

 three-quarters wide. Is in a recent (late always covered 

 with a thin gloffy epidermis of a lighter or darker horn- 

 colour. 



Common in moPt flow rivers and ftagnant pools. 



16. 

 Amnicum. Tellina amnica. GmcJ. Syft. p. 3242. — Turt. Lin. iv. p. 197. 



Mulkr. verm. p. 205. No. 3S9. 



Tellina 



