TELLINA. 



99 



lactea. 62. Shell sub-orbicular, gibbous, pellu- 

 cid, and rather smooth ; hinge with the car- 

 tilage internal. 



Tellina lactea. Linnaus Syst. Nat. p. 1119- Chemnitz, 

 vi. p. 130. t. 13. f. 125. Schroeter Einl. ii. p. 659. 

 Gmelin, p. 3240. Montagu Test. p. 70. t. 2. f. 4. 

 Maton and Racket, in Lin. Trans, viii. p. 56. Dorset 

 Cat. p. 30. t. 5. f. 9. Wood's Conch, p. 187- 

 Petiver Gaz. t. 52. f. 7- Gualter, t. 71. f. D. 

 Inhabits the Mediterranean. Linnaus. Lisbon. Petiver. 



Britain. Pulteney, fyc. 

 The length, which varies from half to three-quarters of an inch, is 

 but very little exceeded by the breadth ; it is a thin convex, 

 white shell, marked ubsoletely wiih irregular concentric striae ; 

 the hinge has two small teeth in one valve, and one in the 

 other, and has the cartilage placed in a deep groove, which 

 runs obliquely from the umbo to the inner margin. 



rotundata. 63. Shell sub-orbicular, and rather 

 convex ; hinge with two teeth in each valve, 

 of which one is bifid, and the other a little 

 diverging. 



Tellina rotundata. Montagu Test. p. 7 J. t. 2. f. 3. Ma- 

 ton and Racket, in Lin. Trans, viii. p. 56. Dorset Cat. 

 p. 30. t. 5. f. 8. Wood's Conch, p. 187. 

 Tellina undata. Pulteney, Dorset Cat. p. 30. 

 Venus diaphana. Gmelin, p. 3292. 

 Venus, No. 136. Schroeter Einleitung, iii. p. 195. 

 Le Felan. Adanson Senegal, p. 227- t. 16. f. 8. 

 Lister Conch, p. 297. f. 134. 



Inhabits the coasts of Norway. Lister. Cape Manuel on the 

 coast of Senegal. Adanson. Britain. Pulteney, fyc. 



The length and breadth are nearly equal, and measure three- 

 quarters of an inch or an inch ; it is a thin, sub-pellucid, 

 white, moderately glossy shell, marked with rather obsolete 

 concentric striae, and has much the habit of Venus undata, 

 but differs materially in the hinge. Le Poron of Adanson, 

 from which T. Adansoni of Gmelin has been constituted, 

 appears to be only the fry of this species. 



flexuosa. 64. Shell sub-orbicular, convex, thin, 

 with a longitudinal furrow at the anterior end, 

 extending from the apex. 

 h 2 



