388 VENERID^. 



T. viKGiNEA, Linna3us. 



Subcordate, suboval, glossy, very inequilateral ; surface smooth 

 towards the beaks, elsewhere merely concentrically striated ; ven- 

 tral edge subarcuated : umbones obtuse, and much inclined 

 forwards : inner surface white or pink. 



Plate XXV.fig. 4, 6. 



Lister, Hist. Conch, pi. 403, f. 247. 

 Vcmh virginea, Linn. Syst. Nat. ed. 12, p. 113C. — Pultenev, Hutchins, Dorset, 

 p. 34. — Mont. Test. Brit. pp. 128, 576. — Linn. Trans, vol. viii, 

 p. 89, pi. 2, f. 8.— Dorset Catalog, p. 36, pi. 13, f. 1.— Turt. 

 Concli. Diction. p._24G.— Turt. Dithyra Brit. p. 156, pi. 8, f. 8. 

 — Forbes, Malacol. Moncnsis, p. 53. — Brit. Marine Conch, p. 

 92, — DiLLWYN, Recent Shells, vol. 1, p. 207. — Lam. Anim. 

 s. Vert. (ed. Desh.) vol. vi. p. 360. — Index Testaceolog. pi. 8, 

 f. 110.— Hanl. Recent Shells, p. 123, pi, 8, f. 110. 

 Venus rhomboides. Pen. Brit, Zool, ed. 4, vol, iv, p, 97, pi. 55, f. (omitted). 

 CuTieus/asciatus, Da Costa, Biit, Conch, p. 204. 

 FewMs ;S'ame?2Sis (Variety), Tort. Dithyra Brit. p. 153, pi. 10, f. 6. — Brit. 



Marine Conch, p. 91. 

 Venerupis „ (Variety), Flem. Brit. Anim. p. 452, 

 Vencrupis ■virginea, Flem. Brit, Anim, p, 452, — Macgilliv. Moll. Aberd. p. 



269, 

 Pullastra virginea. Brown, 111, Conch, G, B., p. 89, pi. 37, f. 8, 9, and pi. 36, 



f.6. 

 Venus virago, Lov'en, Index Moll. Skandinaviaj, p. 40. 

 Tellina ellipiica (Fry) ? Brown, 111. Conch. G. B., p. 101, pi. 40, f. 20, 21. 



By far the most beautiful in painting of our Venerida;, 

 is that which we are about to describe. In form it is of a 

 somewhat heart-shaped oval, and is strong, opaque, and 

 very inequilateral ; its valves are moderately ventricose, but 

 the convexity is tolerably evenly diffused, and not chiefly 

 confined to the umbonal region. The surface, which is 

 glossy, is merely striated in a concentric direction with 

 coarse moderately distant lines, which are not regularly 

 parallel, but approximate in front, becoming more remote 

 at the hinder part of the central disk. These strice are en- 

 tirely obsolete towards the beaks, and anteriorly have a 



