| ADULT SHELLS. | YOUNG SHELL. |
| CYPRAEA EXANTHEMA. |
The Scallop Charley must have read about before his uncle gave it to him, for pilgrims to the Holy Land, many hundred years ago, used to wear it, as a badge on their hats or caps. It has two valves, like the oyster, which are united by a strong and very elastic hinge. It has also a strong muscle, by which it can, as it pleases, open its valves or keep them tightly shut. It helps to move itself about by rapidly opening and closing its shell. It is found in the European seas and all along the southern coasts of England.
SCALLOP.
"Here, Charley," said uncle Brown, "is a very beautiful shell for you, called the Nautilus. The animal is very plentiful in the Mediterranean Sea. It has several arms, which, people used to think, it stretched out like the sails of a ship, and so skimmed over the water in its shell. But this is a mistake, for it covers its shell with these arms, and in fact makes the shell by a secretion from them. It pushes itself through the water by throwing water from a tube, which it has.
NAUTILUS
"The shell is always elegant, but the colors of the living animal are very beautiful."
"Oh uncle," cried Charley, "what wonderful and nice things you have told me? Can I find such things in books."