Читать книгу The Book of Shells. Containing the Classes Mollusca, Conchifera, Cirrhipeda, Annulata, and Crustacea онлайн

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And met the rattling echoes in the west;

The waters, listening to the trumpet’s roar,

Obey the summons, and forsake the shore.

Dryden.

Dolium perdix.Triton variegatum. Pyrula caniculata.

This shell is found in the Icy Sea, and on the coast of Canada, and attains the length of seven inches. The animal of the Pyrula is at present unknown. There is a kind of keel or ridge along the edge of the whorls, which is obliterated in very old specimens. There are as many as eight-and-twenty species of this shell.

Turbo marmoratus.Pleurotoma babylonia. Trochus imperialis.

The Babylonian Split-Mouth is found in the East Indies and the Molucca Islands, and is about three inches and a quarter in length. It is said that the animal of this shell, when in motion, has its foot separated as it were from its body by a long thick footstalk, which arises from the centre of the mantle, which is at this time turned back over the shell. This separation of the foot has the effect of causing the creature to tumble over frequently, from the great weight it has to support.