144 



yellow; auricles Rriatedj equal, reftangular. Infide white, 

 Avith rufous-brown round the margin. Length five inches ; 

 breadth fix. It is fiDmetimes found variegated with pink 

 and brown. 



This fiiell is not uncommon on fome parts of our coaft, 

 and is frequently fold for the ufe of the table, being much 

 efteemed. Is plentiful in Salcomb bay, in DevovJJiire, and 

 in the fea between Portland and Parbeck in DorfetJJiire. 



We are informed by old and experienced dredgers, that 

 the greatefl; quantity are taken after a fall of fnow. 



2. 

 jACoBiEUS. Oftrea Jacobaea. Lin. Syfl. p. 1144. — GjJiel. Syft. p. 3316.2. 



Pitlt. Cat. Dorfct. p. 36. 

 Turt.Lin. Iv. p. 25S. 

 Giialt. t. 99. B.—Fava7i. t. 54. L. 1. 

 Peaen Jacobi. Chem. Conch, vii. t. 60. f. 588. 589. 



LifierConc/i. t.l65. i.2. — t. 166. f. 3. 

 Peflen Jacobaeus. Br. ZooJ. t. 60. f. 62. 



Da Cofta. p. 143. No. 2. 



P. with feventeen or eighteen, very convex, ribs ; up- 

 per valve flat, rufous; the ribs rounded, finely flriated 

 tranfverfely ; with a fmooth, whitifli deprelTion at the 

 umbo : lower valve pure white; ribs angulated, or brought 

 to a flat furface, flrongly furrowed longitudinally, and 

 marked with fine tranfverfe ftriae: auricles equal, rectan- 

 gular, flriated. Infide white, a little tinged with rufous 



at 



