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Ophionereis Schayeri
''Ophionereis schayeri'', Schayer's brittle star, is a brittle star in the family Ophionereididae. Description The central disk is up to 2.5 centimetres wide, with arms to 15 centimetres long. The species is a filter-feeder that sifts sand and mud from the ocean floor for detritus and plankton. Habitat and distribution Schayer's Brittle Star is found off the coast of Australia. Areas include New South Wales, Victoria, South Australia, Western Australia and Tasmania. It is the largest and most common brittle star found near Sydney. The species occurs from the inter-tidal zone to 180 metres below sea level. This brittle star may be found under boulders in tidal areas. It moves quickly away from light when exposed. To reduce exposure to high temperatures, ''O. schayeri'' will form clusters under boulders in rocky reef habitats. Under these boulders, they scavenge for food by extending their arms out at night. Like many species inhabiting tide pools, ''O. schayeri'' may be part ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johannes Peter Müller
Johannes Peter Müller (14 July 1801 – 28 April 1858) was a German physiologist, comparative anatomy, comparative anatomist, ichthyology, ichthyologist, and herpetology, herpetologist, known not only for his discoveries but also for his ability to synthesize knowledge. The paramesonephric duct (Müllerian duct) was named in his honor. Life Early years and education Müller was born in Koblenz, Coblenz. He was the son of a poor shoemaker, and was about to be apprenticed to a saddler when his talents attracted the attention of his teacher, and he prepared himself to become a Roman Catholic Priest. During his Secondary school, college course in Koblenz, he devoted himself to the classics and made his own translations of Aristotle. At first, his intention was to become a priest. When he was eighteen, his love for natural science became dominant, and he turned to medicine, entering the University of Bonn in 1819. There he received his Doctor of Medicine, M.D. in 1822. He then studie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Troschel
Franz Hermann Troschel (10 October 1810 – 6 November 1882) was a German zoologist born in Spandau. He studied mathematics and natural history at the University of Berlin, where he was awarded his doctorate in 1834.Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). ''The Eponym Dictionary of Reptiles''. Baltimore: Johns Hopkins University Press. xiii + 296 pp. . ("Troschel", p. 268). From 1840 to 1849 he was an assistant to Martin Lichtenstein at the Natural History Museum of Berlin. In 1849 he became a professor of zoology and natural history at the University of Bonn. In 1851 he became a member of the Academy of Sciences Leopoldina. ''Deutschen Akademie der Naturforscher Leopoldina''. Troschel is remembered for the identification and classification of species in the fields of [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophionereis Schayeri
''Ophionereis schayeri'', Schayer's brittle star, is a brittle star in the family Ophionereididae. Description The central disk is up to 2.5 centimetres wide, with arms to 15 centimetres long. The species is a filter-feeder that sifts sand and mud from the ocean floor for detritus and plankton. Habitat and distribution Schayer's Brittle Star is found off the coast of Australia. Areas include New South Wales, Victoria, South Australia, Western Australia and Tasmania. It is the largest and most common brittle star found near Sydney. The species occurs from the inter-tidal zone to 180 metres below sea level. This brittle star may be found under boulders in tidal areas. It moves quickly away from light when exposed. To reduce exposure to high temperatures, ''O. schayeri'' will form clusters under boulders in rocky reef habitats. Under these boulders, they scavenge for food by extending their arms out at night. Like many species inhabiting tide pools, ''O. schayeri'' may be part ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brittle Star
Brittle stars, serpent stars, or ophiuroids (; ; referring to the serpent-like arms of the brittle star) are echinoderms in the class Ophiuroidea, closely related to starfish. They crawl across the sea floor using their flexible arms for locomotion. The ophiuroids generally have five long, slender, whip-like arms which may reach up to in length on the largest specimens. The Ophiuroidea contain two large clades, Ophiurida (brittle stars) and Euryalida (basket stars). Over 2,000 species of brittle stars live today. More than 1,200 of these species are found in deep waters, greater than 200 m deep. Range The ophiuroids diverged in the Early Ordovician, about 500 million years ago. Ophiuroids can be found today in all of the major marine provinces, from the poles to the tropics. Basket stars are usually confined to the deeper parts of this range; Ophiuroids are known even from abyssal (>6,000 m) depths. However, brittle stars are also common members of reef communities, where t ... [...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] |
Ophionereididae
Ophionereididae are a family of brittle stars. Systematics Ophionereididae has been placed (along with Ophiocomidae) to the Taxonomic rank, superfamily Ophiocomidea and infraorder Chilophiurina or suborder Chilophiurina in different classifications. Ophionereididae contains the following genera: *''Ophiocrasis'' *''Ophiodoris'' *''Ophionereis'' *''Ophioneroides'' *''Ophiotriton'' References Ophionereididae, Ophiurida Echinoderm families {{Ophiuroidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sydney
Sydney ( ) is the capital city of the state of New South Wales, and the most populous city in both Australia and Oceania. Located on Australia's east coast, the metropolis surrounds Sydney Harbour and extends about towards the Blue Mountains to the west, Hawkesbury to the north, the Royal National Park to the south and Macarthur to the south-west. Sydney is made up of 658 suburbs, spread across 33 local government areas. Residents of the city are known as "Sydneysiders". The 2021 census recorded the population of Greater Sydney as 5,231,150, meaning the city is home to approximately 66% of the state's population. Estimated resident population, 30 June 2017. Nicknames of the city include the 'Emerald City' and the 'Harbour City'. Aboriginal Australians have inhabited the Greater Sydney region for at least 30,000 years, and Aboriginal engravings and cultural sites are common throughout Greater Sydney. The traditional custodians of the land on which modern Sydney stands are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Australian Museum
The Australian Museum is a heritage-listed museum at 1 William Street, Sydney central business district, New South Wales, Australia. It is the oldest museum in Australia,Design 5, 2016, p.1 and the fifth oldest natural history museum in the world, with an international reputation in the fields of natural history and anthropology. It was first conceived and developed along the contemporary European model of an encyclopedic warehouse of cultural and natural history and features collections of vertebrate and invertebrate zoology, as well as mineralogy, palaeontology and anthropology. Apart from exhibitions, the museum is also involved in Indigenous studies research and community programs. In the museum's early years, collecting was its main priority, and specimens were commonly traded with British and other European institutions. The scientific stature of the museum was established under the curatorship of Gerard Krefft, himself a published scientist. The museum is located ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophionereis Fasciata
''Ophionereis'' is a genus of echinoderms belonging to the family Ophionereididae. The genus has almost cosmopolitan distribution. Species: *'' Ophionereis albomaculata'' *'' Ophionereis amphilogus'' *'' Ophionereis andamanensis'' *'' Ophionereis annulata'' *''Ophionereis australis'' *''Ophionereis commutabilis'' *'' Ophionereis degeneri'' *'' Ophionereis diabloensis'' *''Ophionereis dolabriformis'' *''Ophionereis dubia'' *'' Ophionereis eurybrachiplax'' *'' Ophionereis fasciata'' *'' Ophionereis fusca'' *''Ophionereis hexactis'' *'' Ophionereis intermedia'' *''Ophionereis lineata'' *''Ophionereis novaezelandiae'' *''Ophionereis olivacea'' *''Ophionereis perplexa'' *''Ophionereis porrecta'' *''Ophionereis reticulata'' *''Ophionereis sasakii'' *''Ophionereis schayeri'' *''Ophionereis semoni'' *''Ophionereis sexradia'' *''Ophionereis squamulosa'' *''Ophionereis sykesi'' *''Ophionereis thryptica'' *''Ophionereis tigris'' *''Ophionereis variegata'' *' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bioluminescence
Bioluminescence is the production and emission of light by living organisms. It is a form of chemiluminescence. Bioluminescence occurs widely in marine vertebrates and invertebrates, as well as in some fungi, microorganisms including some bioluminescent bacteria, and terrestrial arthropods such as fireflies. In some animals, the light is bacteriogenic, produced by symbiotic bacteria such as those from the genus ''Vibrio''; in others, it is autogenic, produced by the animals themselves. In a general sense, the principal chemical reaction in bioluminescence involves a light-emitting molecule and an enzyme, generally called luciferin and luciferase, respectively. Because these are generic names, luciferins and luciferases are often distinguished by the species or group, e.g. firefly luciferin. In all characterized cases, the enzyme catalyzes the oxidation of the luciferin. In some species, the luciferase requires other cofactors, such as calcium or magnesium ions, and somet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
