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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...

Line Islands

(Encyclopedia)Line Islands or Equatorial Islands, coral group, 43 sq mi (111 sq km), central and S Pacific. Once valuable for their guano deposits, the islands now have coconut groves, airfields, and meteorological...

Balearic Islands

(Encyclopedia)Balearic Islands bälāäˈrās [key], archipelago, off Spain, in the W Mediterranean, an autonomous ...

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...

Blasket Islands

(Encyclopedia)Blasket Islands, group of rock islets, Co. Kerry, SW Republic of Ireland; a lighthouse is on one of the islets. Most of the inhabitants of the islands were moved to the mainland in 1953. Great Blasket...

Manitoulin Islands

(Encyclopedia)Manitoulin Islands mănəto͞oˈlĭn [key], archipelago consisting of three large islands and several smaller ones, in N Lake Huron, NW of Georgian Bay. The islands, in a noted fishing region, are pop...