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sea urchin
(Encyclopedia)sea urchin, spherical-shaped echinoderm with movable spines covering the body. The body wall is a firm, globose shell, or test, made of fused skeletal plates and marked by regularly arranged tubercles...sea walnut
(Encyclopedia)sea walnut, common name for some members of the phylum Ctenophora, whose members are also called comb jellies. ...sea whip
(Encyclopedia)sea whip, erect colony of marine animals of the phylum Cnidaria, with whiplike branches. The skeleton consists of a horny axis, overlaid with small calcareous bodies called spicules. Often beautifully...Red Sea
(Encyclopedia)Red Sea, ancient Sinus Arabicus or Erythraean Sea, narrow sea, c.170,000 sq mi (440,300 sq km), c.1,450 mi (2,330 km) long and up to 225 mi ...Baltic Sea
(Encyclopedia)Baltic Sea, arm of the Atlantic Ocean, c.163,000 sq mi (422,170 sq km), including the Kattegat strait, its northwestern extension. The Øresund, Store Bælt, and Lille Bælt connect the Baltic Sea wit...North Sea
(Encyclopedia)North Sea, arm of the Atlantic Ocean, c.222,000 sq mi (574,980 sq km), c.600 mi (1,000 km) long and c.400 mi (640 km) wide, NW of Central Europe. It washes the shores of Great Britain, Norway, Denmark...Norwegian Sea
(Encyclopedia)Norwegian Sea, part of the Atlantic Ocean, NW of Norway, between the Greenland Sea and the North Sea. It is separated from the Atlantic by a submarine ridge linking Iceland and the Faeroe Islands, and...Erythraean Sea
(Encyclopedia)Erythraean Sea ĕrĭthrēˈən [key], name of unclear origin anciently applied to the Indian Ocean, later to the Arabian Gulf, and finally to the Red Sea. ...Coral Sea
(Encyclopedia)Coral Sea, southwest arm of the Pacific Ocean, between Australia, New Guinea, and Vanuatu. The Great Barrier Reef lies along its western edge. During World War II it was the scene of the battle of the...Amundsen Sea
(Encyclopedia)Amundsen Sea, arm of the S Pacific Ocean, W Antarctica, bordered by Thurston Island and Cape Dart. Off the coast of Marie Byrd Land, the sea was named after Norwegian explorer Roald Amundsen. ...Browse by Subject
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