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Echinoderm Reference Libraries

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Eccentric Sand Dollar Dendraster excentricus
2013-11-21 12:20:48

The Eccentric Sand Dollar (Dendraster excentricus) known also as the Sea-Cake, Biscuit-Urchin, Western Sand Dollar, or the Pacific Sand Dollar, is a member of the order Clypeasteroida, better known as sand dollars, a species of flattened, burrowing sea urchins located along the Pacific Ocean from Alaska to Baja California. This species is an irregular echinoid that is flattened and burrows...

Echinus tylodes
2013-11-15 10:51:41

Echinus tylodes is a species of sea urchin belonging to the Echinidae family. It’s white with rather sparse pink colored spines and is native to the eastern coast of North America including the Gulf of Mexico. This species has a sub-globular test that is about two-thirds as high as it is wide and grows to a diameter of 4 inches. The joints that are between the ambulacral plates and the...

Edible Sea Cucumber Holothuria edulis
2013-11-01 10:54:43

The Edible Sea Cucumber (Holothuria edulis) also known as the Pink and Black Sea Cucumber, is a species of echinoderm belonging to the family Holothuriidae. It was placed in the subgenus Halodeima by Pearson in the year 1914, making its full scientific name Holothuria (Halodeima) Edulis. It can be found in shallow water within the temperate and tropical western portion of the Indo-Pacific...

Blue Spiny Starfish Coscinasterias tenuispina
2013-08-11 13:40:45

The blue spiny starfish (Coscinasterias tenuispina), also known as the white starfish, is a species that is classified within the Asteriidae family. It can be found in the Mediterranean Sea and the Atlantic Ocean. Its range includes the coasts of Portugal, France, Cuba, Brazil, various islands in the Atlantic, and the coasts from North Carolina to Santos. It prefers a habitat along shorelines...

Mediterranean feather star Antedon mediterranea
2013-05-18 06:26:42

The Mediterranean feather star is a filter feeder that obtains food by straining suspended matter and food particles from water. The star has a stalk that has up to forty tendrils, (threadlike organs) which help the star cling to hard surfaces. The “body” of the star is called a calyx and is shaped like a small cup. This calyx is surrounded by feathery pinnules bearing arms. These arms are...

Rosy feather star Antedon bifida
2013-04-27 07:35:37

The Rosy feather star is a species of starfish in the Antedonidae family. It is found in North West Europe along the coast. The specific area of the coast is between the Shetland Islands south to Portugal. There have been sightings in Algeria, Tunisia, West Africa and Venezuela. The Western and Eastern coasts of the British Isles has a climate that promotes the growth of the Antedon bifida. It...

European Spider Crab
2008-05-02 01:08:28

The European Spider Crab (Maja squinado), also known as the Spiny Spider Crab, is a species of migratory crab found in the north-east Atlantic and the Mediterranean Sea. This species migrates usually in autumn, an some crabs may cover more than 100 miles in eight months. It feeds on a great variety of organisms, with seaweeds and mollusks dominating in winter, and echinoderms such as sea...

Word of the Day
callithump
  • A somewhat riotous parade, accompanied with the blowing of tin horns, and other discordant noises; also, a burlesque serenade; a charivari.
'Callithump' is a back-formation of 'callithumpian,' a 'fanciful formation' according to the Oxford English Dictionary. However, the English Dialect Dictionary, says 'Gallithumpians' is a Dorset and Devon word from the 1790s that refers to 'a society of radical social reformers' or 'noisy disturbers of elections and meetings.'
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