VENUS. 
239 
plain and sharp-edged : beaks pointed, turned in and curv¬ 
ing to one side, without any heart-shaped depression under 
them: teeth strong, with a fourth remote lateral one on 
one side : diameter four inches and a half ; circumference 
twelve inches or more. 
Variety. With five or six much raised and rugged con¬ 
centric ridges. 
On.most sandy coasts, v . v. 
16. Venus Chione. Thick-lipped Venus. 
Lister , pi. 269. f. 105— Donovan, pi. 1/— Linn. Truus. 
vi.pl. 17. £ 3, 4— Da Costa, pi. 14. f. 7— Dorset Cat. pi. 6. 
f.7. 
Shell strong,thick, convex, rounded and a little produced 
on the cartilage side, covered'with a smooth glossy chesnut 
skin, and generally marked with longitudinal and trans¬ 
verse darker rays and bands, faintly wrinkled transversely, 
and very finely striate longitudinally, especially towards the 
sides, but these latter marks disappear upon the removal 
of the skin, under which it is of a lighter or darker choco? 
late brown; inside glossy-whith, with the margin plain and 
very obtuse: beaks nearer to one end, oblique, turning to 
one end, with a strong heart-shaped depression under 
them; teeth four, the two middle ones lanceolate and close 
together, the lateral ones diverging; length three inches ; 
breadth nearly four. 
Western coasts, and South Wales, v. v. 
17. Venus ovata. Oval Venus. 
Lister , pi. 311. f. 1 4i Pennant, pi. 59. f. 3 — Linn, 
Trans, viii. pi. 2. f. 4 — Dorset Cat. pi. I. f. 15. W *ike r ./.gz . 
Shell somewhat oval, slightly convex, a little produced 
iir.d sloping on one side, opake, brown, with numerous 
strong longitudinal ribs, which are crossed with fine trans¬ 
verse striee; inside glossy-white or flesh-color, often purple 
in the middle, with the margin finely notched: beaks nearly 
central, turning a little to one side, with a faint heart? 
shaped depression under them : length three-eighths of an 
inch; breadth half an inch. 
Western coasts, Dublin and Bantry bays, and Cove, 
t>. v. 
18, Venug 
