|
Toxopneustidae
Toxopneustidae is a family of globular sea urchins in the class Echinoidea. Characteristics All Camarodonts have imperforate tubercles and compound ambulacral plates. In addition, the Toxopneustids are characterised by the peristome, or opening through the test, having a sharp margin with the buccal notches being prominent. The tubercles lack the crenulations or ring of cog-like structures that articulate with the spines in certain other families. The Aristotle's lantern, or jaw apparatus, has the keeled teeth and the epiphyses united above the foramen magnum, the V-shaped gap between the hemipyramids that support the lantern's tooth. The Natural History Museum. Retrieved 2011-08-27. Genera *''[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flower Urchin
''Toxopneustes pileolus'', commonly known as the flower urchin, is a widespread and commonly encountered species of sea urchin from the Indo-West Pacific. It is considered highly dangerous, as it is capable of delivering extremely painful and medically significant stings when touched. It inhabits coral reefs, seagrass beds, and rocky or sandy environments at depths of up to . It feeds on algae, bryozoans, and organic detritus. Its common name is derived from its numerous and distinctively flower-like pedicellariae, which are usually pinkish-white to yellowish-white in color with a central purple dot. It possesses short and blunt spines, though these are commonly hidden beneath the pedicellariae. The rigid "shell" (test) is a variegated deep red and gray in color, though in rare cases it may be greenish to light purple. Taxonomy ''Toxopneustes pileolus'' is one of four species belonging to the genus '' Toxopneustes''. It belongs to the family Toxopneustidae in the order Cam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toxopneustes Pileolus
''Toxopneustes pileolus'', commonly known as the flower urchin, is a widespread and commonly encountered species of sea urchin from the Indo-West Pacific. It is considered highly dangerous, as it is capable of delivering extremely painful and medically significant stings when touched. It inhabits coral reefs, seagrass beds, and rocky or sandy environments at depths of up to . It feeds on algae, bryozoans, and organic detritus. Its common name is derived from its numerous and distinctively flower-like pedicellariae, which are usually pinkish-white to yellowish-white in color with a central purple dot. It possesses short and blunt spines, though these are commonly hidden beneath the pedicellariae. The rigid "shell" (Sea urchin#Organs and test, test) is a variegated deep red and gray in color, though in rare cases it may be greenish to light purple. Taxonomy ''Toxopneustes pileolus'' is one of four species belonging to the genus ''Toxopneustes''. It belongs to the family (biology) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sphaerechinus Granularis
''Sphaerechinus granularis'' is a species of sea urchin in the family Toxopneustidae, commonly known as the violet sea urchin, or sometimes the purple sea urchin (though the latter is also a common name for a Pacific sea urchin ''Strongylocentrotus purpuratus''). Its range includes the Mediterranean Sea and eastern Atlantic Ocean. Description ''S. granularis'' is a large sea urchin, somewhat flattened dorsally and growing to fifteen centimetres in diameter. There are two distinct colour forms. The test is purple in both but one has purple spines and the other white. The spines are short and blunt, all the same length, and arranged neatly in rows.Picton, B.E. & Morrow, C.C. (2010''Sphaerechinus granularis'' (Lamarck, 1816) ''Encyclopedia of Marine Life of Britain and Ireland''. Retrieved 2011-08-27. Sphaerechinus_granularis_(Lamarck,_1816).jpg, ''Sphaerechinus granularis'' . Sphaerechinus granularis - Tiergarten Schönbrunn.jpg, Dark pink specimen Sphaerechinus granular ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toxopneustes
''Toxopneustes'' is a genus of sea urchins from the tropical Indo-Pacific. It contains four species. They are known to possess medically significant venom to humans on their pedicellariae (tiny claw-like structures). They are sometimes collectively known as flower urchins, after the most widespread and most commonly encountered species in the genus, the flower urchin (''Toxopneustes pileolus''). Species Species included in the genus are the following: Gallery File:Toxopneustes pileolus Okinawa 5m.JPG, ''Toxopneustes pileolus'' from Okinawa, Japan File:Toxopneustes pileolus.jpg, ''Toxopneustes pileolus'' from Réunion File:Toxopneustes roseus.jpg, '' Toxopneustes roseus'' from the Gulf of California, Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ... See also * Fire ur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Urchin
Sea urchins () are spiny, globular echinoderms in the class Echinoidea. About 950 species of sea urchin live on the seabed of every ocean and inhabit every depth zone from the intertidal seashore down to . The spherical, hard shells (tests) of sea urchins are round and spiny, ranging in diameter from . Sea urchins move slowly, crawling with tube feet, and also propel themselves with their spines. Although algae are the primary diet, sea urchins also eat slow-moving (sessile) animals. Predators that eat sea urchins include a wide variety of fish, starfish, crabs, marine mammals. Sea urchins are also used as food especially in Japan. Adult sea urchins have fivefold symmetry, but their pluteus larvae feature bilateral (mirror) symmetry, indicating that the sea urchin belongs to the Bilateria group of animal phyla, which also comprises the chordates and the arthropods, the annelids and the molluscs, and are found in every ocean and in every climate, from the tropics to the pol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echinoidea
Sea urchins () are spiny, globular echinoderms in the class Echinoidea. About 950 species of sea urchin live on the seabed of every ocean and inhabit every depth zone from the intertidal seashore down to . The spherical, hard shells (tests) of sea urchins are round and spiny, ranging in diameter from . Sea urchins move slowly, crawling with tube feet, and also propel themselves with their spines. Although algae are the primary diet, sea urchins also eat slow-moving (sessile) animals. Predators that eat sea urchins include a wide variety of fish, starfish, crabs, marine mammals. Sea urchins are also used as food especially in Japan. Adult sea urchins have fivefold symmetry, but their pluteus larvae feature bilateral (mirror) symmetry, indicating that the sea urchin belongs to the Bilateria group of animal phyla, which also comprises the chordates and the arthropods, the annelids and the molluscs, and are found in every ocean and in every climate, from the tropics to the polar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lytechinus Williamsi
''Lytechinus williamsi'', the jewel urchin, is a sea urchin in the family Toxopneustidae. It occurs on shallow reefs off the coasts of Panama, Belize, the Florida Keys and Jamaica. Description The jewel urchin grows to a diameter of about and has spines up to long. Many of them are shorter than this and provide a dense covering. The test is usually a pale brown colour with a red or dark brown stripe along the joints of the main interambulacral plates. The spines are either deep green or white and have a ridge running along one side of each, a fact that distinguishes this species from the very similar ''Lytechinus variegatus''. In between the spines are large purple tweezer shaped structures called pedicellariae which are also distinctive, ''L. variegatus'' having white pedicellariae. Distribution and habitat The jewel urchin is the commonest sea urchin on some coral reefs in the Caribbean Sea but it seems to be restricted to the coasts of Panama, Belize, the Florida Keys and J ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudoboletia Maculata
''Pseudoboletia maculata'' is a species of sea urchin Sea urchins () are spiny, globular echinoderms in the class Echinoidea. About 950 species of sea urchin live on the seabed of every ocean and inhabit every depth zone from the intertidal seashore down to . The spherical, hard shells (tests) of .... It is found in the western central Pacific Ocean. It is known in Indonesia, the tropical eastern Indian Ocean, and on the Great Barrier Reef. This species is reef-associated, and lives at depths of between 10 and 82 metres. References External links * {{Taxonbar, from=Q1990652 Toxopneustidae Animals described in 1869 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gymnechinus
''Gymnechinus'', is a genus of sea urchin Sea urchins () are spiny, globular echinoderms in the class Echinoidea. About 950 species of sea urchin live on the seabed of every ocean and inhabit every depth zone from the intertidal seashore down to . The spherical, hard shells (tests) of .... Species * '' Gymnechinus abnormalis'' H.L. Clark, 1925 * '' Gymnechinus epistichus'' H.L. Clark, 1912 * '' Gymnechinus pulchellus'' Mortensen, 1904 * '' Gymnechinus robillardi'' (de Loriol, 1883) References Toxopneustidae {{echinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tripneustes
''Tripneustes'' is a genus of sea urchins belonging to the family Toxopneustidae. Species The genus contains four extant species: This genus contains many extinct species, such as: * '' Tripneustes antiquus'' Duncan & Sladen, 1855 * '' Tripneustes californicus'' Kew, 1920 * '' Tripneustes gahardensis'' (Seunes) * '' Tripneustes magnificus'' Nisiyama, 1966 * '' Tripneustes parkinsoni'' (Agassiz, 1847) * '' Tripneustes pregratilla'' McNamara and Kendrick 1994 * '' Tripneustes proavia'' Duncan & Sladen, 1855 * '' Tripneustes schneideri'' Boehm * '' Tripneustes tobleri'' Jeannet, 1928a Distribution These sea urchins have been recorded as fossils from Miocene to Recent (from 15.97 to 0.0 Ma). Fossils have been found in the sediments of Southern Europe, Mediterranean and North Africa, Caribbean, Western coast of America and throughout the Indo-Pacific. Gallery Image:Collector urchin.jpg, ''Tripneustes gratilla'' Image:West Indian sea egg Tripneustes ventricosus (4654425141). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tripneustes Gratilla
''Tripneustes gratilla'', the collector urchin, is a species of sea urchin. Collector urchins are found at depths of in the waters of the Indo-Pacific, Hawaii, the Red Sea, and The Bahamas. They can reach in size. Description Collector urchins are dark in color, usually bluish-purple with white spines. The pedicles are also white, with a dark or black base. Individuals found at Green Island had orange-tipped spines. The spines of some specimens are wholly orange, while those of others are only orange-tipped or completely white. This color disappears when the individual dies or is taken out of the ocean, and is difficult to preserve. Collector urchins reach in size. Debris tends to "collect" on these urchins, hence their name. Unlike some other sea urchins, collector urchins graze continually, day and night. They graze near the substrate, and their diet includes algae, periphyton, and seagrass. Most collector urchins feed on seagrass fronds; this has an ecological impact vary ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Collector Urchin
''Tripneustes gratilla'', the collector urchin, is a species of sea urchin. Collector urchins are found at depths of in the waters of the Indo-Pacific, Hawaii, the Red Sea, and The Bahamas. They can reach in size. Description Collector urchins are dark in color, usually bluish-purple with white spines. The pedicles are also white, with a dark or black base. Individuals found at Green Island had orange-tipped spines. The spines of some specimens are wholly orange, while those of others are only orange-tipped or completely white. This color disappears when the individual dies or is taken out of the ocean, and is difficult to preserve. Collector urchins reach in size. Debris tends to "collect" on these urchins, hence their name. Unlike some other sea urchins, collector urchins graze continually, day and night. They graze near the substrate, and their diet includes algae, periphyton, and seagrass. Most collector urchins feed on seagrass fronds; this has an ecological impact v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Echinoidea")
