92 



heart-shaped ; inside white, purple or greenish ; two of 

 the teeth bifid. 2. Guernsey. 



V. SINUOSA. Pen. 4. p. 213. t.5S.f. 4. Mont. p. 

 120. Lin. T. 8. p. 90.Turt. C. D.p. 248.Turt. 

 B.p. 154. t. 10. /. 9.^.^. 449. Roundish oval, 

 subequilateral, with a longitudinal sinuosity from the 

 beaks, whitish, with flat transverse striae and obscure 

 longitudinal ones; lunule heart-shaped, subcarinate; 

 inside rich glossy yellow ; two of the teeth in one valve 

 bifid, one so in the other, $. Dublin Bay. 



V. AuREA.Pew. 4. p. 212. t. 60. /. 1. Mont. p. 

 129. Lin. T. 8. p. 90. t. 2. /. 9. Dor. Cat. p. 36. 

 t. 13./.3. D.p. 207. Lam. 56. List. t. 404. /. 

 249. Turt. C. D.p. 247.Turt. B. p. 155. t. 9./. 7, 

 8. F.p. 449. Oval heart-shaped, tumid in the mid- 

 dle and sloping to each side, anteriorly more produced, 

 closely striated transversely, and very obscurely so 

 longitudinally, lighter or darker yellow with blackish 

 brown or bluish ziczac lines or stripes, variously dis- 

 posed and often confluent ; lunule broad ; middle tooth 

 cloven . 1 ... 1 i. Devon and Cornwall. 



V.VIRGINEA.Z. 1136. D.j>. 207. Lam. 57. 

 Ch.f. 457. Pen. 4. p. 212. t. 58. /. 5. Mont. p. 



