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Arabian Sea

(Encyclopedia)Arabian Sea, ancient Mare Erythraeum, northwest part of the Indian Ocean, lying between Arabia and India. The Gulf of Aden, extended by the Red Sea, and the Gulf of Oman, extended by the Persian Gulf,...

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...

Bellingshausen Sea

(Encyclopedia)Bellingshausen Sea, part of the S Pacific Ocean, W Antarctica, SW of Cape Horn between the Antarctic Peninsula and Amundsen Sea. The sea is named after Russian explorer Fabian Gottlieb von Bellingshau...

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...

Yellow Sea

(Encyclopedia)Yellow Sea or Huanghai hwäng-hī [key] [yellow sea], arm of the Pacific Ocean, between China and Korea, where it is called the West Sea. It has a maximum depth of 500 ft (152 m). Bohai, Korea Bay (or...

sea slug

(Encyclopedia)sea slug, name for a marine gastropod mollusk that lacks a shell as an adult and is usually brightly colored. Sea slugs, or nudibranchs, are distributed throughout the world, with the greatest numbers...

sea lion

(Encyclopedia)sea lion, fin-footed marine mammal of the eared seal family (Otariidae). Like the other member of this family, the fur seal, the sea lion is distinguished from the true seal by its external ears, long...

sea pen

(Encyclopedia)sea pen, long, slender colonial organism of the same phylum as the jellyfish. Sea pen colonies are formed by several genera of the order Pennatulacea. The colony consists of a stalk formed by an organ...

Chukchi Sea

(Encyclopedia)Chukchi Sea chəkˈchē [key], part of the Arctic Ocean N of the Bering Strait, between Siberia and Alaska, Wrangell Island lies to the west and the Beaufort Sea lies to the east. The sea has an appro...

sea cucumber

(Encyclopedia)sea cucumber, any of the flexible, elongated echinoderms belonging to the class Holothuroidea. Although sea cucumbers have the basic echinoderm radial symmetry (see Echinodermata), they do not have ar...