Cardium

( Zool.) The Cockle, a genus of Mollusca, fam. Card i ace a. The foot is largely developed, and is a most important organ to the animals, it being used by most of them not merely for progre ion, but in the excavation of hollows in the sand or mud of the shores on dium, or Cockle, when extended, tapers gradually to al rus.] A race-course; the ground; the ground over "They had run themselves too far out of breath, to go back again the same career ."-Sir P. Sidney. -A race; a course; a rapid running; as, a horse in full "When down the hill he holds his fierce career ."-Shaks. -General course of action or movement; course of proceeding; as, his was a brilliant career . "Continue and proceed in honour's fair career ." - Dryden. (Sporting.) In falconry, the flight of a hawk. -v. i. To move or run rapidly. point; and as its diameter is at its largest point much le than the breadth of the shell, it is not apparent by what means the hole that is excavated is made sufficiently large for the reception of the latter; this, however, is accomplished by the distention of the foot with water, through a tube which opens just within the mouth; and thus the size of the borer becomes so nearly equal to that of the shell, that it is enabled, by rotatory motions often repeated, to excavate a burrow large enough to receive the animal with its shell. The shell is generally white, with sometimes a bluish or yellowish cast; it has twenty-six longitudinal ridges, is transversely -Full of care; solicitous; anxious; troubled; perturbed; wrinkled, and has somewhat imbricated str iæ. The Cockles, with few exceptions, inhabit the ocean only; they abound most on sandy shores, and are used as a wholesome and nourishing food. The most common species is the Edible Cockle ( Cardium edule ).