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Alvinella Pompejana
''Alvinella'' is a genus of annelids The annelids (), also known as the segmented worms, are animals that comprise the phylum Annelida (; ). The phylum contains over 22,000 extant species, including ragworms, earthworms, and leeches. The species exist in and have adapted to vario ... belonging to the family Alvinellidae. The species of this genus are found in Southeastern Asia and Northern America. Species: *'' Alvinella caudata'' *'' Alvinella pompejana'' References {{Taxonbar, from=Q3887923 Annelids ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Annelids
The annelids (), also known as the segmented worms, are animals that comprise the phylum Annelida (; ). The phylum contains over 22,000 extant species, including ragworms, earthworms, and leeches. The species exist in and have adapted to various ecologies – some in marine environments as distinct as tidal zones and hydrothermal vents, others in fresh water, and yet others in moist terrestrial environments. The annelids are bilaterally symmetrical, triploblastic, coelomate, invertebrate organisms. They also have parapodia for locomotion. Most textbooks still use the traditional division into polychaetes (almost all marine), oligochaetes (which include earthworms) and leech-like species. Cladistic research since 1997 has radically changed this scheme, viewing leeches as a sub-group of oligochaetes and oligochaetes as a sub-group of polychaetes. In addition, the Pogonophora, Echiura and Sipuncula, previously regarded as separate phyla, are now regarded as sub-group ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alvinellidae
The Alvinellidae are a family of small, deep-sea polychaete worms endemic to hydrothermal vents in the Pacific Ocean. Belonging to the order Terebellida, the family contains two genera, '' Alvinella'' and '' Paralvinella''; the former genus contains two valid species and the latter eight. Members of the family are termed alvinellids. The family was first described in 1979 after discoveries made off the Galápagos Islands by the crew of the DSV ''Alvin''. The ship subsequently lent its name to the family and genera within it. The worms build mucus tubes and extend red feathery gills. Members of the Alvinellidae are noted for their exceptional heat tolerance: one species, ''Alvinella pompejana'', is thought to be the most heat-tolerant complex organism on Earth. Mitochondria start to break down at temperatures of , apparently providing an upper limit for eukaryotes. Under laboratory conditions, in a pressurized aquarium with a heat gradient, worms of the species ''Paralvinella ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alvinella Caudata
''Alvinella'' is a genus of annelids belonging to the family Alvinellidae. The species of this genus are found in Southeastern Asia and Northern America. Species: *'' Alvinella caudata'' *''Alvinella pompejana ''Alvinella'' is a genus of annelids The annelids (), also known as the segmented worms, are animals that comprise the phylum Annelida (; ). The phylum contains over 22,000 extant species, including ragworms, earthworms, and leeches. The sp ...'' References {{Taxonbar, from=Q3887923 Annelids ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alvinella Pompejana
''Alvinella'' is a genus of annelids The annelids (), also known as the segmented worms, are animals that comprise the phylum Annelida (; ). The phylum contains over 22,000 extant species, including ragworms, earthworms, and leeches. The species exist in and have adapted to vario ... belonging to the family Alvinellidae. The species of this genus are found in Southeastern Asia and Northern America. Species: *'' Alvinella caudata'' *'' Alvinella pompejana'' References {{Taxonbar, from=Q3887923 Annelids ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
