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Echinidea
The Camarodonta are an order of globular sea urchins in the class Echinoidea. The fossil record shows that camarodonts have been in existence since the Lower Cretaceous.The Echinoid Directory The Natural History Museum. Retrieved 2011-08-27. Characteristics All camarodonts have imperforate tubercles and compound ambulacral plates with the lowest elements enlarged. The pores are at regular intervals along the ambulacral plates from the apex to the mouth opening or peristome. The Aristotle's lantern, or jaw system, has keeled teeth with the supports meeting above the "foramen magnum".Families According to |
Parasaleniidae
Parasaleniidae is a family of echinoderms belonging to the order Camarodonta. Genera: * '' Diplosalenia'' * ''Parasalenia ''Parasalenia'' is a genera of echinoderms belonging to the order Camarodonta. Species *''Parasalenia gratiosa'' *''Parasalenia poehlii'' Fossils * ''Parasalenia marianae ''Parasalenia'' is a genera of echinoderms belonging to the order Camar ...'' References Camarodonta Echinoderm families {{Echinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asterechinus Elegans
''Asterechinus elegans'' is a species of sea urchin of the family Trigonocidaridae. Their armour is covered with spines. It is placed in the genus Asterechinus and lives in the sea. Asterechinus elegans was first scientifically described in 1942 by Ole Theodor Jensen Mortensen.Kroh, A. (2010). ''Asterechinus elegans'' (Mortensen, 1942). In: Kroh, A. & Mooi, R. (2010World Echinoidea Database at the World Register of Marine Species. See also * ''Aspidodiadema sinuosum'' * ''Aspidodiadema tonsum'' * ''Asthenosoma dilatatum ''Asthenosoma dilatatum'' is a species of sea urchin of the family Echinothuriidae. Their armour is covered with spines. It is placed in the genus Asthenosoma and lives in the sea. Asthenosoma dilatatum was first scientifically described in 1934 ...'' References Trigonocidaridae Animals described in 1942 Taxa named by Ole Theodor Jensen Mortensen {{echinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microcyphus Rousseaui
''Microcyphus'' is a genera of echinoderms belonging to the order Temnopleuridae. Species Fossils *''Microcyphus iglahensis'' *''Microcyphus javanus'' *''Microcyphus melo ''Microcyphus'' is a genera of echinoderms belonging to the order Temnopleuridae. Species Fossils *''Microcyphus iglahensis'' *''Microcyphus javanus ''Microcyphus'' is a genera of echinoderms belonging to the order Temnopleuridae. Species Fo ...'' References External links * * Temnopleuridae Echinoidea genera {{Echinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parasalenia Poehlii
''Parasalenia'' is a genera of echinoderms belonging to the order Camarodonta. Species *''Parasalenia gratiosa'' *''Parasalenia poehlii'' Fossils * ''Parasalenia marianae'' References External links * * Parasaleniidae Echinoidea genera {{Echinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tripneustes Ventricosus
''Tripneustes ventricosus'', commonly called the West Indian sea egg or white sea urchin, is a species of sea urchin. It is common in the Caribbean Sea, the Bahamas and Florida and may be found at depths of less than . Description The test of the West Indian sea egg is dark in color, usually black, dark purple or reddish brown, with white spines long. The test can reach in diameter. It is often covered with pieces of seagrass, fragments of shell and other debris in a manner similar to the closely related '' Tripneustes gratilla''.Humann, Paul, ''Reef Creature Identification'', Edited by Ned Deloach. New World Publications, Inc., 1992, p. 292-293. These decorations are held in place by tube feet among the spines and are believed to provide protection from the intense sunlight that penetrates the shallow water. Distribution and habitat The West Indian sea egg is found in shallow parts of the western Atlantic Ocean, the Caribbean Sea and Gulf of Mexico. Its range extends from Ber ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strongylocentrotus Franciscanus
The red sea urchin (''Mesocentrotus franciscanus'') is a sea urchin found in the northeastern Pacific Ocean from Alaska to Baja California. It lives in shallow waters from the low-tide line to greater than deep, and is typically found on rocky shores sheltered from extreme wave action in areas where kelp is available. Description A sea urchin's spherical body is completely covered by sharp spines. These spines grow on a hard shell called the "test", which encloses the animal. It can vary in color from red to dark burgundy. Rarely, albino specimens are found. It has a mouth located on its underside, which is surrounded by five teeth. During larval development, the body of a sea urchin transitions from bilateral to radial symmetry. This bilaterally symmetrical larva, called an echinopluteus, subsequently develops a type of pentaradiate symmetry that characterizes echinoderms. It crawls very slowly over the sea bottom using its spines as stilts, with the help of its tube feet. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echinometra Lucunter
''Echinometra lucunter'', the rock boring urchin, is a species of sea urchin in the family Echinometridae. It is found in very shallow parts of the western Atlantic Ocean and the Caribbean Sea. Description ''Echinometra lucunter'' has an elliptical rather than a round test (shell). It can grow to a diameter of about and grows larger at the extreme north and south ends of its range than it does in the centre. It has moderately short spines with wide bases and sharp tips. The colour of the test varies from black to deep brownish-red, often being more ruddy on its aboral (upper) surface than on its oral (lower) surface. The spines are usually black. Distribution and habitat ''Echinometra lucunter'' is common throughout the Caribbean Sea and also occurs in Florida, Bermuda and the South American coast as far south as Brazil. It occurs on shallow rocky areas and on coral reefs usually at depths of or less but occasionally in deeper water down to about . It is sometimes found amo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echinus Esculentus
''Echinus esculentus'', the European edible sea urchin or common sea urchin, is a species of marine invertebrate in the Echinidae family. It is found in coastal areas of western Europe down to a depth of . It is considered "Near threatened" in the IUCN Red List of Threatened Species. Description ''E. esculentus'' is approximately spherical but slightly flattened at both poles. It is reddish or purplish with white tubercles and grows to about ten centimetres in diameter. The brittle, limy test is rigid and divided into five ambulacral areas separated by five inter-ambulacral areas. There are two rows of plates in each of these areas, making twenty rows of plates in total. The test is covered in spines each articulating with a tubercle. There is a dense covering of secondary spines and a smaller number of longer, primary spines, carried on each second or third ambulacral plate. The spines are blunt ended and usually white with purplish tips. There is a radially symmetrical pattern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trigonocidaridae
Trigonocidaridae is a family of echinoderms An echinoderm () is any member of the phylum Echinodermata (). The adults are recognisable by their (usually five-point) radial symmetry, and include starfish, brittle stars, sea urchins, sand dollars, and sea cucumbers, as well as the ... belonging to the order Camarodonta. Genera Genera: * '' Arbacina'' Pomel, 1869 * '' Asterechinus'' Mortensen, 1942 * '' Brochopleurus'' References Camarodonta Echinoderm families {{echinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Temnopleuridae
''Temnopleuridae'' is a family of sea urchins in the infraorder Temnopleuridea. Genera * ''Amblypneustes'' L. Agassiz, 1841 * '' Erbechinus'' Jeannet, 1935 * ''Holopneustes'' L. Agassiz, 1841 * ''Mespilia'' Desor in L. Agassiz & Desor, 1846 * ''Microcyphus'' L. Agassiz ''in'' L. Agassiz & Desor, 1846 * '' Opechinus'' Desor, 1856 * '' Paratrema'' Koehler, 1927 * †'' Placentinechinus'' Borghi & Garilli, 2016 * '' Printechinus'' Koehler, 1927 * '' Pseudechinus'' Mortensen, 1903 * '' Salmaciella'' Mortensen, 1942 * ''Salmacis'' L. Agassiz, 1841 * '' Temnopleurus'' L. Agassiz Jean Louis Rodolphe Agassiz ( ; ) FRS (For) FRSE (May 28, 1807 – December 14, 1873) was a Swiss-born American biologist and geologist who is recognized as a scholar of Earth's natural history. Spending his early life in Switzerland, he rece ..., 1841 * '' Temnotrema'' A. Agassiz, 1864 References {{echinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
