VENUS. 
Shell with two valves’: hinge with three teeth,, 
all near together; one of them placed longitudi¬ 
nally, and inclining outwards. 
A. Somewhat heart-shaped, 1 to 19. 
B. Somewhat orbicular, 20 to 25. 
C. Oval, and mostly angular on the cartilage side, 
to 35. 
A. Somewhat heart-shaped, 1 to 19. 
1. Venus spinifera. Spinous Venus* 
Montagu, pi. 17* f. 1. 
Shell somewhat oval and rather triangular, yellowish- 
white, with numerous fine raised parallel equidistant con¬ 
centric ridges, which reflect a little, and at the anterior 
sides in both valves Become confluent in pairs, so as to form 
short obtuse spines, which turn back and make a deep ca¬ 
vity for the cartilage : beaks small, nearly central, a little 
inclining to one side, with an elongated heart-shaped de¬ 
pression under them ; inside smooth, white, with the mar¬ 
gin plain; in one valve a single strong tootli, with a small 
cavity, and a remote lateral plate on each side ; in the other 
valve two teeth, without the lateral plates ; length half an 
inch; breadth rather more. 
Some of the young shells of V. Gallina much resemble 
this, but the plain margin and the disposition of the teeth 
at once distinguish it. 
South of Devonshire: rare. v. m* 
2. Venus verrucosa. Warty Venus* 
Lister, pi. 284. f. 122— Pennant, pi. 57« f. l^—Da Costa , 
pi. 12.f. 1— Linn ♦ Trans, vi. pi. 17- f- 5, 6— Donovan, pi.44 
— Dorset Cat. pi. 8 f. 1. 
Venus cancellata. Donovan, pL 115. The young shell. 
Shell strong, thick, very convex, roundish but a little 
produced On the anterior side, rugged, with strong raised 
thin transverse ridges, which turn a little upwards towards 
the hinge, a little waved on their edges, and broken to- 
x 2 wards 
