104 TELLINA. 



broad ; rather strong, somewhat pellucid, white or pale flesh 

 colour, and sometimes of a brighter red towards the apices ; 

 it has derived its name from the oblique curved striae which 

 bear a fancied resemblance to those at the end of the fingers ; 

 the hinge is placed considerably nearer the posterior than 

 the anterior end. The shell figured by Chemnitz from the 

 Nicobar Islands is probably a distinct species, for it mea- 

 sures eleven lines in length, by thirteen in breadth, and is 

 clouded with a duil red. 



cornea. 73. Shell sub-orbicular, gibbous, glabrous, 

 finely striated transversely, and the umbones 

 obtuse. 



Tellina cornea. Linn mis Sust. Nat. p. 1120. Pennant 

 Zool. iv. p. 89. t. 49. f. 36. Schroeter F/uss. p. 189. t. 

 4. f. 3 to 5, and Einl. ii. p. 66'J. Chemnitz, vi. p. 136. 

 t. 13. f. 133. Gmelin, p. 3241. Maton in Lin. Trans. 

 iii. p. 45. t. 13. f. 39 and 40. Donovan, iii. t. 96. Ma- 

 ton and Racket, in Lin. Trans, viii. p. 59. Wood's 

 Conch, p. 196. t. 46. f. 3. Brooks's Introd. p. 57. t. 2. 

 f. 15. 

 Tellina rivalis. Midler Verm. ii. p. 202. 

 Cardium Nux. Da Costa Brit. Conch, p. 173. t. 13. f. 2. 

 Cardium corneum. Dorset Cat. p. 32. t. 7. f. 2. Montagu 



Test. p. 86. 

 Cydas cornea. Lamarck Syst. des Anim. p. 124. 

 Le Came des Ruisseaux. deoffroy, p. 133. t. 3. 

 Lister Anim. Ang. t. 2. f. 31. App. t. 1. f. 5. and Conch. 

 t. 159. f. 14. Gualter, t. 7. f. C. Argenvilie, t. 31. f. 9. 

 Enc. Meth. t. 302. f. 5. 

 Variety. Shell larger and less convex. 

 Cardium amnicum. Dorset Cat. p. 32. 

 Lister Anim. Ang. p. 22. 

 Inhabits rivers, ponds, and ditches in Europe, common. 

 Shell commonly about five lines long, and six broad ; thin, pel- 

 lucid, horn-coloured, very convex, finely striated transversely, 

 and sometimes marked with a broad transverse depression or 

 furrow, towards the margin ; the hinge is placed a little on 

 the posterior side, and has two very small primary teeth, with 

 remote, prominent, laminated, lateral ones, which has in- 

 duced many naturalists to consider it a Cardium. 



lacustris. 74. Shell sub-rhomboidal, rather com- 

 pressed, glabrous, with the umbones promi- 

 nent and acute. 



