Under their hard shells there is imagination that has been nurtured in long, long thoughts.
The hard shells of sea urchins and starfishes are made of lime.
The hard shells are not affected, but only those which are thin.
They have hard shells, and most of them are not large; though we often shot at them, we did not succeed in getting a single one.
They have long, leg-like claws, and are covered with hard shells.
Hickory nuts are his favourite food, and the hard shells seem but an appetizing relish.
They are entirely encased in hard shells, which, though of the same general shape, differ somewhat from each other in appearance.
The first real fossils found in the rocks are the hard shells or skeletons of the first plants and animals that had hard parts.
The rocks, and the wooden piles of the pier, are often covered with the hard shells known as Barnacles, or Acorn Shells.
They have hard shells of a bright saffron colour, and their faces have a most cynical and diabolic expression.