ANIMALS OF THE SEASHORE and the Lady Crab (Ovalipes ocellatus) burrow into the sand close to low water mark. Among the mollusks the Surf Clam (Mactra solidissima), the Moon Snail (Polinices duplicatus) and the tiny Wedge Clam (Donax fossor) often live along sandy beaches.Many animals of the shallow sea zone, or the off shore communities, are often found on the beach where they have been carried by the waves. If one walks along one of the New Jersey beaches after a severe storm, he is apt to find a great variety of strange sea animals that have been washed either living or dead upon the beach.After one storm the beach may be strewn with thousands of Red Sponges (Microciona prolifera) carried from the oyster grounds of Delaware Bay.After another storm one may find instead a great many tropical species carried from the Gulf Stream which lies about 100 miles off shore.The Portuguese Man of War (Physalia pelagica), the Gulf Weed Crab [Planes minutus), and other unusual specimens are among the rarer visitors to the New Jersey coast.New England is noted for its " stern and rockbound coast," New Jersey for its sandy beaches.Certain species of sea animals are usually found associated with rocks and would not be expected along the sandy coast of New Jersey. However, in recent years, rock jetties and breakwaters have been built at a number of places along the coast of that state and thus homes are provided for some of these rock-loving species.Among the New England species that are seldom found in New Jersey waters except on the "Rock Piles" are the Periwinkles (Littorina litorea, L. rudis and L. palliata) and the Rock Barnacle (Balanus balanoides) . Calappa flammea 230 Callinectes ornatus 236 Callinectes sapidus 235 Callocardia morrhuana .... 156 Campanularia edwardsii .... 47 Campanularia minuta 47 Campanularia verticillata . . 47 Cancer borealis 238 Cancer irroratus 238 Cantharus cancellaria 29 Caprella auctifrons 213 Caprcllla geomctrica 213 Carcinides maenas 234 Cardium mortoni 153 Cardium robustum 154 Cardita borealis 152 Ccllcpora avicularis 105 Cerapus tubularis 213 Cerebratulus lacteus 114 Cerithiopsis emersoni 181 Cerithiopsis subulata 181 Ceronia arctata 161 Chaetopterus pergmentaceus 1.31

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A pelecypod from the Salina beds of northern Peru at elevation 4.5 m ( 15 ft) shows a date of about 3000 years B. P., while a gastropod from elevation 22.5 m (75 ft) was older than 30,000 years B. P. A pelecypod from the island of Tierrabomba, near Cartagena, Colombia, at elevation 2.7 m ( 9 ft) gave a date of about 2850 years, while a pelecypod from Comodoro Rividavia, Argentina, at elevation 9 m ( 30 ft) gave a date of 5350 years B. P.