. The animal life of our seashore. With special reference to the New Jersey coast and the southern shore of Long Island. Marine animals. THE SHELL-FISH OF THE COAST. 27 Natica (PI. 1, Figs. 1, 4), one of whose best rcprO' sentativee is the common globular shell, of about the size of an apple, which is found almost every- where along the beach. The natics, with strong carnivore propensities, are markedly predaceous in their habits, moving about rapidly in their sandy homes in quest of food, which they usually find in the shell-fish buried at some little depth beneath the surface. The making of
. The animal life of our seashore. With special reference to the New Jersey coast and the southern shore of Long Island. Marine animals. THE SHELL-FISH OF THE COAST. 27 Natica (PI. 1, Figs. 1, 4), one of whose best rcprO' sentativee is the common globular shell, of about the size of an apple, which is found almost every- where along the beach. The natics, with strong carnivore propensities, are markedly predaceous in their habits, moving about rapidly in their sandy homes in quest of food, which they usually find in the shell-fish buried at some little depth beneath the surface. The making of the larger round holes which appear in such perfection on the shells of many of the bivalves is commonly attributed to the Natica, but the exact amount of guilt attaching to this creature has never yet been determined. The. Natica extended. Naticas have certain peculiarities of structure which it will be well to notice. You will observe, if you have succeeded in finding more than the empty shell, that the animal is completely retractile, and, further, that it has cased itself in by means of a horny lid or ' operculum,' which is attached to the under surface of the creeping disk or foot. This foot is greatly produced in front, where it is re- flected back in the form of a hood, covering the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Heilprin, Angelo, 1853-1907. Philadelphia, J. B. Lippincott Company
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