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Bathypolypus Arcticus Arcticus
''Bathypolypus'' is a genus of octopuses in the monotypic family Bathypolypodidae. 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) * ''Bathypolypus bairdii -'' Baird's Octopus Verrill, 1873 * ''Bathypolypus ergasticus'' P. Fischer & H. Fischer, 1892 * ''Bathypolypus pugniger'' Muus, 2002 * ''Bathypolypus rubrostictus'' Kaneko & Kubodera, 2008 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, ''Sasaki ... [...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 family Bathypolypodidae. It is endemic to the south Atlantic off southern Africa below a depth of where it was one of the most commonly sampled cephalopods, taken mainly from the sea bed. The specific name commemorates the SS Valdivia (1886), SS Valdivia the steamship used on the Valdivia Expedition of 1898-1899 and which was led by Carl Chun. 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). Journal of the Marine Biological Association of the United Kingdom 101, 1–25. https://doi.org/10.1017/S0025315420001356 Luna A, Rocha F, PeralesRaya C (2021). A review of cephalopods (Phylum: Mollusca) of the Canary Current Large Marine Ec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bathypolypus Arcticus Proschi
''Bathypolypus'' is a genus of octopuses in the monotypic family Bathypolypodidae. 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) * ''Bathypolypus bairdii -'' Baird's Octopus Verrill, 1873 * ''Bathypolypus ergasticus'' P. Fischer & H. Fischer, 1892 * ''Bathypolypus pugniger'' Muus, 2002 * ''Bathypolypus rubrostictus'' Kaneko & Kubodera, 2008 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, ''Sasakiop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cephalopod Genera
A cephalopod is any member of the molluscan class Cephalopoda (Greek plural , ; "head-feet") such as a squid, octopus, cuttlefish, or nautilus. These exclusively marine animals are characterized by bilateral body symmetry, a prominent head, and a set of arms or tentacles (muscular hydrostats) modified from the primitive molluscan foot. Fishers sometimes call cephalopods "inkfish", referring to their common ability to squirt ink. The study of cephalopods is a branch of malacology known as teuthology. Cephalopods became dominant during the Ordovician period, represented by primitive nautiloids. The class now contains two, only distantly related, extant subclasses: Coleoidea, which includes octopuses, squid, and cuttlefish; and Nautiloidea, represented by ''Nautilus'' and ''Allonautilus''. In the Coleoidea, the molluscan shell has been internalized or is absent, whereas in the Nautiloidea, the external shell remains. About 800 living species of cephalopods have been identified. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mebibyte
The byte is a units of information, unit of digital information that most commonly consists of eight bits. Historically, the byte was the number of bits used to encode a single character (computing), character of text in a computer and for this reason it is the smallest address space, addressable unit of Computer memory, memory in many computer architectures. To disambiguate arbitrarily sized bytes from the common 8-bit computing, 8-bit definition, Computer network, network protocol documents such as the Internet Protocol () refer to an 8-bit byte as an Octet (computing), octet. Those bits in an octet are usually counted with numbering from 0 to 7 or 7 to 0 depending on the bit numbering, bit endianness. The size of the byte has historically been Computer hardware, hardware-dependent and no definitive standards existed that mandated the size. Sizes from 1 to 48 bits have been used. The six-bit character code was an often-used implementation in early encoding systems, and compute ... [...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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Chun
Carl Chun or Karl Friedrich Gustav Chun (1 October 1852 – 11 April 1914) was a German marine biologist who worked as a professor at the Universities of Königsberg (1883), Breslau (1891) and Leipzig (1898). He was a pioneer of German oceanographic research, organizing the first deep-sea expedition aboard the ''SS Valdivia'' in 1898-99. He spent much of his life studying the collections made during the expedition, and was responsible for discovering many marine organisms, including the vampire squid. Life and work Chun was born in Höchst, today a part of Frankfurt, where his father Gustav (1827–1907) was rector of the Weißfrauenschule. Chun went to the Lessing Gymnasium and became interested in zoology from an early age thanks to the Senckenberg Museum in Frankfurt where he listened to lectures by Fritz Noll, Hermann Theodor Geyler, and Karl von Fritsch. He studied at the University of Göttingen and then at the University of Leipzig, receiving a doctorate in 1874. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johannes Thiele (zoologist)
Karl Hermann Johannes Thiele (1 October 1860 – 5 August 1935) was a German zoologist specialized in malacology. Thiele was born in Goldap, East Prussia. His ''Handbuch der systematischen Weichtierkunde'' (English language, English edition published by the Smithsonian under the title ''Handbook of Systematic Malacology'') is a standard work. From 1904 until his retirement in 1925 he was the curator of the malacological collection at the Museum für Naturkunde, Museum für Naturkunde (Museum of Natural History) in Berlin. Thiele described more than 1.500 new species of molluscs; until today their types are deposited with the Museum of Natural History in Berlin. Especially important are his works on the Mollusca of the First German Antarctica Expedition and of the Valdivia Expedition, German Deep Sea Expedition aboard the vessel Valdivia. Thiele's classification of Gastropoda has been in use up to the past decade. It modified an earlier concept of Henri Milne-Edwards (1848) with thr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paul Henri Fischer
Paul Henri Fischer (also spelled Paul-Henri Fischer), (7 July 1835 Paris – 29 November 1893) was a French physician, zoologist and paleontologist. He is generally known as Paul Fischer. Biography He studied science and medicine, securing doctorates in both, and became assistant in paleontology at the National Museum of Natural History (France), National Museum of Natural History in Paris. He was made assistant naturalist there in 1872. Beginning in 1856, he was joint editor, with A. C. Bernardi to start with, of the ''Journal de Conchyliologie''. He served several terms as president of the Société Géologique de France and the Société zoologique de France, Société Zoologique de France. In 1880, he was a member of the commission for Marine biology dredge, submarine dredging. Bibliography *''Faune conchyliologique marine du departement de la Gironde et des côtes du sud-ouest de la France'' (1865; enlarged by a ''Supplément'' in 1875) *''Catalogue des nudibranches et ... [...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 Rubrostictus
''Bathypolypus rubrostictus'' is a species of octopus in the family Bathypolypodidae. Only one specimen, a male, has been found. Distribution ''Bathypolypus rubrostictus'' was initially identified from a specimen off the coast of the Ryukyu 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bathypolypus Arcticus Arcticus
''Bathypolypus'' is a genus of octopuses in the monotypic family Bathypolypodidae. 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) * ''Bathypolypus bairdii -'' Baird's Octopus Verrill, 1873 * ''Bathypolypus ergasticus'' P. Fischer & H. Fischer, 1892 * ''Bathypolypus pugniger'' Muus, 2002 * ''Bathypolypus rubrostictus'' Kaneko & Kubodera, 2008 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, ''Sasaki ... [...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 contain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
