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Bathypolypus
''Bathypolypus'' is a genus of octopuses in the monotypic family Bathypolypodidae. It has five described species. Species Species in the genus ''Bathypolypus'' include: * ''Bathypolypus arcticus'' ( Prosch, 1847) ** ''Bathypolypus arcticus arcticus'' – spoonarm octopus (Prosch, 1847) ** ''Bathypolypus arcticus proschi'' Muus, 1962 * ''Bathypolypus rubrostictus'' Kaneko & Kubodera, 2008 * ''Bathypolypus sponsalis'' – globose octopus (Fischer & Fischer, 1892) * ''Bathypolypus valdiviae'' – boxer octopus ( Thiele in Chun, 1915) Synonyms: * ''Bathypolypus salebrosus'' (Sasaki, 1920) is a synonym for '' Sasakiopus salebrosus'' (Sasaki, 1920)Jorgensen E. M., Strugnell J. M. & Allcock A. L. (2010). "Description and phylogenetic relationships of a new genus of octopus, ''Sasakiopus'' (Cephalopoda: Octopodidae), from the Bering Sea, with a redescription of ''Sasakiopus salebrosus'' (Sasaki, 1920)". ''Journal of Molluscan Studies'' 76(1): 57-66. . * ''Bathypolypus faer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bathypolypus Arcticus Proschi
''Bathypolypus'' is a genus of octopuses in the monotypic family Bathypolypodidae. It has five described species. Species Species in the genus ''Bathypolypus'' include: * '' Bathypolypus arcticus'' ( Prosch, 1847) ** ''Bathypolypus arcticus arcticus'' – spoonarm octopus (Prosch, 1847) ** '' Bathypolypus arcticus proschi'' Muus, 1962 * ''Bathypolypus rubrostictus'' Kaneko & Kubodera, 2008 * ''Bathypolypus sponsalis'' – globose octopus (Fischer & Fischer, 1892) * ''Bathypolypus valdiviae ''Bathypolypus valdiviae'', common name the boxer octopus or Valdivia bathyal octopus, is a species of octopus in the Bathypolypodidae family. It is endemic to the south Atlantic off southern Africa below a depth of 500m where it was one of the ...'' – boxer octopus ( Thiele in Chun, 1915) Synonyms: * ''Bathypolypus salebrosus'' (Sasaki, 1920) is a synonym for '' Sasakiopus salebrosus'' (Sasaki, 1920)Jorgensen E. M., Strugnell J. M. & Allcock A. L. (2010). "Description and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bathypolypus Arcticus Arcticus
''Bathypolypus'' is a genus of octopuses in the monotypic family Bathypolypodidae. It has five described species. Species Species in the genus ''Bathypolypus'' include: * '' Bathypolypus arcticus'' ( Prosch, 1847) ** '' Bathypolypus arcticus arcticus'' – spoonarm octopus (Prosch, 1847) ** '' Bathypolypus arcticus proschi'' Muus, 1962 * '' Bathypolypus rubrostictus'' Kaneko & Kubodera, 2008 * '' Bathypolypus sponsalis'' – globose octopus (Fischer & Fischer, 1892) * ''Bathypolypus valdiviae ''Bathypolypus valdiviae'', common name the boxer octopus or Valdivia bathyal octopus, is a species of octopus in the Bathypolypodidae family. It is endemic to the south Atlantic off southern Africa below a depth of 500m where it was one of the ...'' – boxer octopus ( Thiele in Chun, 1915) Synonyms: * ''Bathypolypus salebrosus'' (Sasaki, 1920) is a synonym for '' Sasakiopus salebrosus'' (Sasaki, 1920)Jorgensen E. M., Strugnell J. M. & Allcock A. L. (2010). "Description ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bathypolypus Arcticus
''Bathypolypus arcticus'', the North Atlantic octopus, deep sea octopus or spoonarm octopus is a small species of demersal octopus of the North Atlantic. It is usually found at depths of where the temperature is between . Description ''Bathypolypus arcticus'' is a small, short-armed octopus which is between in length, with an average adult weight of around and a maximum of . Like other deep-sea octopuses, ''Bathypolypus arcticus'' do not have ink sacs. The mantle is globular, being nearly as wide as it is long. The surface of mantle, head, arms and web is covered in warts, especially around the eyes. The arms are short and in an irregular order with two rows of small suckers. Ecology ''Bathypolypus arcticus'' has low fecundity meaning that they lay fewer, relatively larger eggs than many other octopuses from which benthic young hatch. The female broods her eggs for over 400 days during which time it ceases to eat and slowly wastes away as it metabolises its own body to pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bathypolypus Sponsalis
''Bathypolypus sponsalis'', commonly called the globose octopus, is a deep sea cephalopod that can be found in both the eastern Atlantic Ocean and the Mediterranean Sea. It possesses many morphological traits adapted to a deep sea environment, including large eggs, reduced gills, no ink sac, and subgelatinous tissues. A distinguishing factor are the relatively large reproductive organs. Their diet consists of predominantly crustaceans and molluscs, but they sometimes consume fish as well. ''Bathypolypus sponsalis'' usually dies quickly after reproduction and only spawns once in their lifetime. Sexually mature females have a mantle length of at least 34 mm and sexually mature males have a mantle length of about 24 mm. Juveniles are white and transition to dark brown then to dark purple once maturity is reached. Range and habitat ''Bathypolypus sponsalis'' are found in areas ranging from the eastern Atlantic Ocean all the way to the Mediterranean Sea. They typically resi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bathypolypus Valdiviae
''Bathypolypus valdiviae'', common name the boxer octopus or Valdivia bathyal octopus, is a species of octopus in the Bathypolypodidae family. It is endemic to the south Atlantic off southern Africa below a depth of 500m where it was one of the most commonly sampled cephalopods, taken mainly from the sea bed. The specific name commemorates the SS Valdivia the steamship used on the Valdivia Expedition of 1898-1899 and which was led by Carl Chun Carl Chun (1 October 1852 – 11 April 1914) was a German marine biologist. Chun was born in Höchst, today a part of Frankfurt, and studied zoology at the University of Leipzig, where from 1878 to 1883 he was privat-docent of zoology and an a .... In a recent 2021 study, geographic distribution of the species has expanded to waters off Guinea–Bissau. References Luna A, Rocha F, PeralesRaya C (2021). A review of cephalopods (Phylum: Mollusca) of the Canary Current Large Marine Ecosystem (Central-East Atlantic, African coast). Jour ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bathypolypus Rubrostictus
''Bathypolypus rubrostictus'' is a species of octopus in the family Bathypolypodidae. Only one male specimen has been found. Distribution B. rubrostictus was initially identified from a specimen off the coast of the Ryuku Islands in the South China Sea off the coast of Japan. It inhabits the upper bathyal waters at 350-370 m. Unlike all other species in the genus Bathypolypus, B. rubrostictus lives in the Pacific Ocean, while all the other species in its genus inhabit the Atlantic Ocean. Description This species is 20 mm in mantle length (ML) and its arms are short and stubby (2-2.5 times ML). Its body is covered with small, brown-red spots, and its web is pale reddish-brown. Like most deep-sea octopuses and all species in the genus Bathypolypus, B. rubrostictus lacks an ink sac An ink sac is an anatomical feature that is found in many cephalopod mollusks used to produce the defensive cephalopod ink. With the exception of nocturnal and very deep water cephalopods, all Coleo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sasakiopus
''Sasakiopus'' is a genus of octopus containing only one species, ''Sasakiopus salebrosus'', the rough octopus. It is part of the family Enteroctopodidae. Genetic analysis appeared to show that ''S. salebrosus'' is the sister taxon of the genera '' Benthoctopus'' and '' Vulcanoctopus'', although the former is now considered a synonym of '' Bathypolypus'', the only genus in the family Bathypolypodidae, and the latter as a synonym of '' Muusoctopus''. The type specimen was collected and the Sea of Okhotsk, and the describer Madoka Sasaki named it ''Octopus salebrosus'' in 1920. When Guy Coburn Robson revised the Octopodidae, he tentatively reassigned ''O. salebrosus'' to ''Bathypolypus'' based on its rough skin, deep web, and short arms. The only specimens available to Robson were females, so the ligula could not be examined, the ligulae of ''Bathypolypus'' are distinctively large and are laminated. Subsequent workers raised doubts about where this species should be placed until s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Octopus
An octopus ( : octopuses or octopodes, see below for variants) is a soft-bodied, eight- limbed mollusc of the order Octopoda (, ). The order consists of some 300 species and is grouped within the class Cephalopoda with squids, cuttlefish, and nautiloids. Like other cephalopods, an octopus is bilaterally symmetric with two eyes and a beaked mouth at the center point of the eight limbs. The soft body can radically alter its shape, enabling octopuses to squeeze through small gaps. They trail their eight appendages behind them as they swim. The siphon is used both for respiration and for locomotion, by expelling a jet of water. Octopuses have a complex nervous system and excellent sight, and are among the most intelligent and behaviourally diverse of all invertebrates. Octopuses inhabit various regions of the ocean, including coral reefs, pelagic waters, and the seabed; some live in the intertidal zone and others at abyssal depths. Most species grow quickly, mature ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ferdinand Victor Alphons Prosch
Ferdinand Victor Alphons Prosch (November 25, 1820 in Copenhagen – July 29, 1885) was a Danish doctor, veterinarian and biologist. Prosch's father, Johannes Henrik William Prosch (died 1843) was a secretary in the Danish War Chancery and his mother, Caroline Sophie (née Brement) was French. In 1837 Prosch was a student at the Metropolitan School in Copenhagen and by 1843 he had taken his medical exams. Between 1843 and 1846 Prosch was employed by the University as a prosector, i.e. a preparer of specimens for dissection in the University's Zoological museum. In 1847 he joined the ''Flaaden'' as the ship's doctor on a voyage to Madeira. Guinea, Venezuela and the Caribbean. In 1848 he was the ship's doctor on the frigate ''Havfrue'' ("Mermaid") in the First Schleswig War. After the war practiced as a doctor in Copenhagen and was a teacher of natural history, in which capacity he published the book "Lærer i Naturhistorie, i hvilken Egenskabin" 1851, which at the time was widely ... [...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] |
Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guy Coburn Robson
Guy Coburn Robson (1888–1945) was a British zoologist, specializing in Mollusca, who first named and described '' Mesonychoteuthis hamiltoni'', the colossal squid. Robson studied at the marine biological station in Naples, and joined the staff of the Natural History Museum in 1911, becoming Deputy Keeper of the Zoology Department from 1931 to 1936. Evolution Robson is best known for his major book ''The Variations of Animals in Nature'' (co-authored with O. W. Richards, 1936) which argued that although the fact of evolution is well established, the mechanisms are largely hypothetical and undemonstrated.Allee, W. C. (1937)''The Variation of Animals in Nature: A Critical Summary and Judgment of Evolutionary Theories by G. C. Robson, O. W. Richards'' ''American Journal of Sociology'' 42 (4): 596–597. The book claims that most differences among animal populations and related species are non-adaptive. It was published before major developments in the modern synthesis and contains ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
