8 
9) 
J 
THE MOLLUSCA OF DORSETSHIRE. 
316. L. elliptica, Lamarck. Mactra lutraria, L. 
317. 
319. 
320. 
Pulteney, p. 33, pl. 5, f. 11. 
Lives in moist mud and ooze on the Dorset coast. 
Weymouth, Damon, occasionally after storms. 
Poole, cn the sand-banks (dead), Dr. Turner. 
Fossil ; Coralline and Red Crags. 
Order CARDIACEA., 
CARDIIDA. 
Siphons short ; foot large, sickle-shaped. 
CARDIUM, Z. 1758. 
C. aculeatum, L. 
British Conchology, Vol. ii., p. 268. 
A local shell, rare on the Dorset coast but very abundant in 
South Devon. 
Weymouth Bay, dredged, W. Thompson ; several, one measur- 
ing in greatest breadth four and a-half inches, 4. 2. Sykes. 
. C. echinatum, J. 
Pulteney, p. 3l, pl. 6, f. 2. 
Weymouth, Bay, #. R. Sykes. 
Shore between Studland and South Haven, J. C. IL.-P. 
Fossil: St. Erth beds and Red Crag. 
C. tuberculatum, Z. C. rusticum (Z.) 
Pulteney, p. 31, pl. 2, £. 2. 
British Conchology, Vol. ii., p. 273. 
Sandy bays, from low-water-mark at spring-tides to 12 fathoms. 
Weymouth, Damon, HE. R. Sykes. 
Poole, sand-banks (dead), Dr. Turner. 
Shore between Studland and South Haven, J. C. M.-P. 
Fossil : St. Erth beds and Red Crag. 
C. exiguum, Gel. C. pygmeum, Don. 
Forbes and Hanley, Vol. ii., p. 29, pl. 32, f. 8. 
Weymouth, Hanley. 
Weymouth Bay, on sea-weed, dredged 5 fathoms, HZ. It. Sykes. 
