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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] |
Benthoctopus
''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
''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] |
Bathypolypodidae
''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 is a German occupational surname, meaning fisherman. The name Fischer is the fourth most common German surname. The English version is Fisher. People with the surname A * Abraham Fischer (1850–1913) South African public official * Ad ... & 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enteroctopodidae
Enteroctopodidae is a small family of octopuses. This family was formerly considered a subfamily of the family Octopodidae ''sensu lato ''Sensu'' is a Latin word meaning "in the sense of". It is used in a number of fields including biology, geology, linguistics, semiotics, and law. Commonly it refers to how strictly or loosely an expression is used in describing any particular c ...'' but this family has now been divided into a number of separate families with Enteroctopodidae as one of them. Genera These genera are included in the family Enteroctopodidae: * '' Enteroctopus'' Rochebrune & Mabille, 1889 * '' Muusoctopus'' Gleadall, 2004 * '' Sasakiopus'' Jorgensen, Strugnell & Allcock, 2010 * '' Vulcanoctopus'' González & Guerra, 1998 References {{Taxonbar, from=Q21129859 Cephalopod families ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elaina M
Elena is a popular female given name of Greek origin. The name means "shining light". Nicknames of the name Elena are Lena, Lennie, Ella, Ellie, Nellie or Nena (less common). Other common variants are Alena (German, Czech, Russian, Belarusian, Serbian, Croatian); Alenka (Slovenian); Alyona (Russian); Elene (Georgian); Helen (English); Hélène (French); Helena (Latin, Polish); Eliana (Portuguese); Eline (Dutch, Norwegian, Sranan Tongo); Ileana (Romanian, Italian, Spanish); Ilona (Hungarian, Finnish, Latvian); Olena (Ukrainian); and Elena/Yelena/Jelena (Russian, Serbian, Croatian). Notable people Given name A–K * Elena Abelson (1904–1993), better known as Tamara Talbot Rice, Russian-English art historian * Elena Altieri, Italian actress * Elena Anaya, Spanish actress * Elena Arzhakova (born 1989), Russian runner who specializes in the middle distance events * Elena Asimakopoulou, Greek model * Elena Baltacha (1983–2014), British tennis player, born in Kiev * Elen ... [...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] |
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 ide ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Needham's Sac
Needham's sac (also called a spermatophore sac) is the part of the reproductive tract of cephalopods in which spermatophores are stored. Spermatophores are complex structures consisting of ropes of sperm and in some species include an ejaculatory apparatus and a cement body. Needham's sac opens into the left side of the mantle cavity. During copulation of some cephalopod species, the hectocotylus A hectocotylus (plural: ''hectocotyli'') is one of the arms of male cephalopods that is specialized to store and transfer spermatophores to the female. Structurally, hectocotyli are muscular hydrostats. Depending on the species, the male may use i ... transfers the spermatophore from Needham's sac into the mantle cavity of the female. The cement body helps the spermatophore adhere to the female. References External links Cirrate male reproductive tractfroTOLWeb Cephalopod zootomy Sex organs Mammal male reproductive system {{Cephalopod-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hectocotylised
A hectocotylus (plural: ''hectocotyli'') is one of the arms of male cephalopods that is specialized to store and transfer spermatophores to the female. Structurally, hectocotyli are muscular hydrostats. Depending on the species, the male may use it merely as a conduit to the female, analogously to a penis in other animals, or he may wrench it off and present it to the female. The hectocotyl arm was first described in Aristotle's biological works. Although Aristotle knew of its use in mating, he was doubtful that a tentacle could deliver sperm. The name ''hectocotylus'' was devised by Georges Cuvier, who first found one embedded in the mantle of a female argonaut. Supposing it to be a parasitic worm, in 1829 Cuvier gave it a generic name, combining the Greek word for "hundred" and Latin word for "hollow thing". Anatomy Generalized anatomy of squid and octopod hectocotyli: Variability Hectocotyli are shaped in many distinctive ways, and vary considerably between species. The s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mantle (mollusc)
The mantle (also known by the Latin word pallium meaning mantle, robe or cloak, adjective pallial) is a significant part of the anatomy of molluscs: it is the dorsal body wall which covers the visceral mass and usually protrudes in the form of flaps well beyond the visceral mass itself. In many species of molluscs the epidermis of the mantle secretes calcium carbonate and conchiolin, and creates a shell. In sea slugs there is a progressive loss of the shell and the mantle becomes the dorsal surface of the animal. The words mantle and pallium both originally meant cloak or cape, see mantle (vesture). This anatomical structure in molluscs often resembles a cloak because in many groups the edges of the mantle, usually referred to as the ''mantle margin'', extend far beyond the main part of the body, forming flaps, double-layered structures which have been adapted for many different uses, including for example, the siphon. Mantle cavity The ''mantle cavity'' is a central fea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benthic
The benthic zone is the ecological region at the lowest level of a body of water such as an ocean, lake, or stream, including the sediment surface and some sub-surface layers. The name comes from ancient Greek, βένθος (bénthos), meaning "the depths." Organisms living in this zone are called benthos and include microorganisms (e.g., bacteria and fungi) as well as larger invertebrates, such as crustaceans and polychaetes. Organisms here generally live in close relationship with the substrate and many are permanently attached to the bottom. The benthic boundary layer, which includes the bottom layer of water and the uppermost layer of sediment directly influenced by the overlying water, is an integral part of the benthic zone, as it greatly influences the biological activity that takes place there. Examples of contact soil layers include sand bottoms, rocky outcrops, coral, and bay mud. Description Oceans The benthic region of the ocean begins at the shore line (intertidal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bering Sea
The Bering Sea (, ; rus, Бе́рингово мо́ре, r=Béringovo móre) is a marginal sea of the Northern Pacific Ocean. It forms, along with the Bering Strait, the divide between the two largest landmasses on Earth: Eurasia and The Americas. It comprises a deep water basin, which then rises through a narrow slope into the shallower water above the continental shelf, continental shelves. The Bering Sea is named for Vitus Bering, a Denmark, Danish navigator in Russian service, who, in 1728, was the first European to systematically explore it, sailing from the Pacific Ocean northward to the Arctic Ocean. The Bering Sea is separated from the Gulf of Alaska by the Alaska Peninsula. It covers over and is bordered on the east and northeast by Alaska, on the west by the Russian Far East and the Kamchatka Peninsula, on the south by the Alaska Peninsula and the Aleutian Islands and on the far north by the Bering Strait, which connects the Bering Sea to the Arctic Ocean's Chukchi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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