TRIBE CONCHACEA. 115 



lateral, uniformly whitish, with crowded transverse grooves : lunule, 

 lanceolate. 1^. 



V. Dombei. Lam. 21. Rounded ovate, thick, rufous, with 

 flattened ribs decussated by transverse striae, and the lunule ovate ; 

 white within with very irregularly impressed dots towards the 

 centre. If. — Peru — Bears a strong resemblance to C. Punctata, 

 but besides the difference of hinge and colouring, is less rounded 

 and more tumid. 



V. Mercenaria. Lin. 1131.— D. p. 176.— Lam. 22. Ch. f. 

 1659, 60.—^. t. 263.— W. t. 7. /. 40. Obliquely heart-shaped, 

 solid, with rough irregular concentric striae, straw colour ; lunule 

 heart-shaped : interior white with a large violet stain chiefly visible 

 on the anterior side. 2f . . 3 J. — N. America, 



V. Lagopus. Lam. 23. Triangular heart-shaped, white with 

 fulvous spots and stained with rose color within ; with raised 

 transverse crowded ribs which are crenulated on the side nearest the 

 ventral margin, and almost become ridges at the anterior extremity. 

 If. — New Holland. 



V. Gallina.* Lin. 1130.— D. p. 168.— Lam. 24.— W. t. l.f. 

 23.— Turt. B. p. 149. t. 9. /. 2.— Ch. f. 308.— List. t. 282. 

 f. 120. — V. Striatula. Don. t. 68. Triangular heart-shaped, 

 with numerous glossy sloping transverse ridges, which seem cre- 

 nulated from being crossed by crowded fine rufous lines ; whitish or 

 pale brown with more or less distinct darker rays, the beaks much 

 recurved, and the slopes nearly smooth. 1 . . 1£* — N. Europe. 



V. Gallinula. Lam. 25. — Del. t. 10. f. 1. — V. Costulata. 

 W. S. t. 2.f. 15. Elliptic, heart-shaped, moderately convex, with 

 short longitudinal interrupted rufous lines (sometimes obsolete 

 rays), and transverse elevated sloping grooves, which become striae 

 at the anterior end, whose slope is rather short and somewhat linear : 

 lunule ovate : interior stained with purplish violet. 1^. — New 

 Holland. — Closely resembling Gallina. 



V. Pectinula. Lain. 26. — Del. t. 10. f. 3. Rounded trian- 

 gular, pale fulvous with longitudinal crenated radiating grooves : 

 lunule ovate : Cherbourg, — not unlike the shell figured in Lin. 

 Tr. vol. 8. t. 2. f. 5.i 



V. Squamosa. Lin. 1133.— D. p. 190.— W. t. 8. f. 71.— 

 Cytherea S. Lam. 75. — Ch. f. 335. Triangular heart-shaped, 

 ventricose but compressed at the produced and beaked anterior 

 extremity the slope of which is striated ; reddish white variegated 

 with darker lines on the posterior slope and marked with longitudinal 

 grooves which are cancellated by concentric ones : lunule rounded 



1 V. Sulcata. Lam. 27. is a Crassina. 

 i 2 



