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Astrostole Rodolphi
''Astrostole'' is a genus of sea stars in the family Asteriidae. Species * '' Astrostole insularis'' Clark, 1938 * '' Astrostole multispina'' Clark, 1950 * '' Astrostole paschae'' Clark, 1920 * '' Astrostole platei'' Meissner 1896 * '' Astrostole rodolphi'' Perrier, 1875 * ''Astrostole scabra ''Astrostole scabra'', commonly called the seven-armed starfish, is a sea star in the family Asteriidae, native to New Zealand, eastern Australia and southern Australia. A frequent inhabitant of the intertidal zone also seen attached to wharf pil ...'' Hutton, 1872 References {{Taxonbar, from=Q3460377 Asteriidae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astrostole Scabra
''Astrostole scabra'', commonly called the seven-armed starfish, is a sea star in the family Asteriidae, native to New Zealand, eastern Australia and southern Australia. A frequent inhabitant of the intertidal zone also seen attached to wharf piles, it is among the larger sea-stars found in New Zealand. Adults often pray on mussels, forcing the shells open by applying pressure for long periods with the tube feet. Description With a diameter of up to 350mm in subtidal forms, the colouration of ''A. scabra'' varies from orange through dark red to brown, or light blue to grey. The dorsal surface is covered in speckled plates, from the center of which protrude one or two short, stubby white spines which are specialised ossicles. These spines are blunt on top, becoming sharper and sometimes longer on the sides of the arms. Spines can appear blue in juveniles. The madreporite is not obvious. Tube feet are a combination of off-white and bright orange. Intertidal individuals are gen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animalia
Animals are multicellular, eukaryotic organisms in the biological kingdom Animalia. With few exceptions, animals consume organic material, breathe oxygen, are able to move, can reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of cells, the blastula, during embryonic development. Over 1.5 million living animal species have been described—of which around 1 million are insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a bilaterally symmetric body plan. The Bilateria include the protostomes, containing animals such as nematodes, arthropods, flatworms, annelids and molluscs, and the deuterostomes, containing the echinode ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echinodermata
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 sea lilies or "stone lilies". Adult echinoderms are found on the sea bed at every ocean depth, from the intertidal zone to the abyssal zone. The phylum contains about 7,000 living species, making it the second-largest grouping of deuterostomes, after the chordates. Echinoderms are the largest entirely marine phylum. The first definitive echinoderms appeared near the start of the Cambrian. The echinoderms are important both ecologically and geologically. Ecologically, there are few other groupings so abundant in the biotic desert of the deep sea, as well as shallower oceans. Most echinoderms are able to reproduce asexually and regenerate tissue, organs, and limbs; in some cases, they can undergo complete regeneration from a single limb. Geolo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eleutherozoa
Eleutherozoa is a proposed subphylum of echinoderms. They are mobile animals with the mouth directed towards the substrate. They usually have a madreporite, tube feet, and moveable spines of some sort, and some have Tiedemann's bodies on the ring canal. All living echinoderms except Crinozoa and Blastozoa belong here. Systematics There are 2 main competing hypotheses about the internal subdivision, both about equally well supported by both molecular and morphological data. They differ in their placement of the Ophiuroidea (brittle stars), and are named accordingly. The "Cryptosyringida" hypothesis posits that the "sea-star" morphology is plesiomorphic for Eleutherozoa as a whole, and that starfish (Asteroidea) and brittle stars are not very closely related, the latter forming the clade Cryptosyringida together with the Echinozoa. The "Asterozoa" hypothesis, on the other hand, implies that the "sea-star" arms of starfish and brittle stars, as well as the rounded shape of Echinoz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asteroidea
Starfish or sea stars are star-shaped echinoderms belonging to the class Asteroidea (). Common usage frequently finds these names being also applied to ophiuroids, which are correctly referred to as brittle stars or basket stars. Starfish are also known as asteroids due to being in the class Asteroidea. About 1,900 species of starfish live on the seabed in all the world's oceans, from warm, tropical zones to frigid, polar regions. They are found from the intertidal zone down to abyssal depths, at below the surface. Starfish are marine invertebrates. They typically have a central disc and usually five arms, though some species have a larger number of arms. The aboral or upper surface may be smooth, granular or spiny, and is covered with overlapping plates. Many species are brightly coloured in various shades of red or orange, while others are blue, grey or brown. Starfish have tube feet operated by a hydraulic system and a mouth at the centre of the oral or lower surface. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forcipulatida
The Forcipulatida are an order of sea stars, containing three families and 49 genera Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclat .... Description Forcipulatids share with the brisingid sea stars distinctive pedicellariae, consisting of a short stalk with three skeletal Ossicle (echinoderm), ossicles. Unlike that group, however, the forcipulatids tend to have more robust bodies. The order includes some well-known species, such as the common starfish, ''Asterias rubens''. This order can be commonly found from Nor Carolina in the United States all the way to Santos in Brazil. Phylogeny The order is divided into three families: * Family Asteriidae — 39 genera * Family Heliasteridae — two genera * Family Zoroasteridae — eight genera World Register of Marine Species gives ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asteriidae
The Asteriidae are a diverse family of Asteroidea (sea stars) in the order Forcipulatida. It is one of three families in the order Forcipulatida. Genera The World Register of Marine Species lists these genera within the family Asteriidae (in a field of 6 families): * '' Adelasterias'' Verrill, 1914 * '' Anasterias'' Perrier, 1875 * '' Aphanasterias'' Fisher, 1923 * '' Aphelasterias'' Fisher, 1923 * ''Asterias'' Linnaeus, 1758 * '' Astrometis'' Fisher, 1923 * '' Astrostole'' Fisher, 1923 * '' Caimanaster'' A.M. Clark, 1962 * '' Calasterias'' Hayashi, 1975 * '' Coronaster'' Perrier, 1885 * ''Coscinasterias'' Verrill, 1867 * '' Cryptasterias'' Verrill, 1914 * '' Diplasterias'' Perrier, 1891 * '' Distolasterias'' Perrier, 1896 * '' Evasterias'' Verrill, 1914 * '' Icasterias'' Fisher, 1923 * '' Kenrickaster'' A.M. Clark, 1962 * ''Leptasterias'' Verrill, 1866 * '' Lethasterias'' Fisher, 1923 * '' Lysasterias'' Fisher, 1908 * '' Marthasterias'' Jullien, 1878 * '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Star
Starfish or sea stars are Star polygon, star-shaped echinoderms belonging to the class (biology), class Asteroidea (). Common usage frequently finds these names being also applied to brittle star, ophiuroids, which are correctly referred to as brittle stars or basket stars. Starfish are also known as asteroids due to being in the class Asteroidea. About 1,900 species of starfish live on the seabed in all the world's oceans, from warm, tropics, tropical zones to frigid, polar regions of Earth, polar regions. They are found from the intertidal zone down to abyssal zone, abyssal depths, at below the surface. Starfish are marine invertebrates. They typically have a central disc and usually five arms, though some species have a larger number of arms. The aboral or upper surface may be smooth, granular or spiny, and is covered with overlapping plates. Many species are brightly coloured in various shades of red or orange, while others are blue, grey or brown. Starfish have tube fee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astrostole Insularis
''Astrostole'' is a genus of sea stars in the family Asteriidae. Species * '' Astrostole insularis'' Clark, 1938 * '' Astrostole multispina'' Clark, 1950 * '' Astrostole paschae'' Clark, 1920 * '' Astrostole platei'' Meissner 1896 * ''Astrostole rodolphi'' Perrier, 1875 * ''Astrostole scabra ''Astrostole scabra'', commonly called the seven-armed starfish, is a sea star in the family Asteriidae, native to New Zealand, eastern Australia and southern Australia. A frequent inhabitant of the intertidal zone also seen attached to wharf pil ...'' Hutton, 1872 References {{Taxonbar, from=Q3460377 Asteriidae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astrostole Multispina
''Astrostole'' is a genus of sea stars in the family Asteriidae. Species * ''Astrostole insularis'' Clark, 1938 * '' Astrostole multispina'' Clark, 1950 * '' Astrostole paschae'' Clark, 1920 * '' Astrostole platei'' Meissner 1896 * ''Astrostole rodolphi'' Perrier, 1875 * ''Astrostole scabra ''Astrostole scabra'', commonly called the seven-armed starfish, is a sea star in the family Asteriidae, native to New Zealand, eastern Australia and southern Australia. A frequent inhabitant of the intertidal zone also seen attached to wharf pil ...'' Hutton, 1872 References {{Taxonbar, from=Q3460377 Asteriidae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astrostole Paschae
''Astrostole'' is a genus of sea stars in the family Asteriidae. Species * ''Astrostole insularis'' Clark, 1938 * ''Astrostole multispina'' Clark, 1950 * '' Astrostole paschae'' Clark, 1920 * '' Astrostole platei'' Meissner 1896 * ''Astrostole rodolphi'' Perrier, 1875 * ''Astrostole scabra ''Astrostole scabra'', commonly called the seven-armed starfish, is a sea star in the family Asteriidae, native to New Zealand, eastern Australia and southern Australia. A frequent inhabitant of the intertidal zone also seen attached to wharf pil ...'' Hutton, 1872 References {{Taxonbar, from=Q3460377 Asteriidae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
