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Amphitretidae
Amphitretidae is a family of mesopelagic octopods which contains three subfamilies, formerly classified as families in their own right. It is classified in the superfamily Octopodoidea. Species in the family Amphipetridae are characterised by having a single row of suckers on each arm (uniserial suckers), a gelatinous body and non hemispherical eyes. Taxonomy There are three subfamilies within Amphipetridae: * Subfamily Amphitretinae Hoyle, 1886 ** Genus ''Amphitretus'' Hoyle, 1885 * Subfamily Bolitaeninae Chun, 1911 ** Genus ''Bolitaena'' Steenstrup, 1859 ** Genus ''Japetella'' Hoyle, 1885 ** Genus '' Dorsopsis'' Thore, 1949 (''taxon inquirendum'') * Subfamily Vitreledonellinae Robson, 1932 ** Genus ''Vitreledonella'' Joubin Louis Marie Adolphe Olivier Édouard Joubin (27 February 1861 in Épinal – 24 April 1935 in Paris) was a professor at the Muséum national d'Histoire naturelle in Paris. He published works on nemerteans, chaetognatha, cephalopods, and other M .. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Octopodoidea
Octopodoidea is a superfamily of the suborder Incirrata containing all extant octopods except for the cirrate octopodes, argonauts (Alloposidae, Argonautidae, Ocythoidae and Tremoctopodidae), and the vampire squid. FamiliesOctopus * Suborder Incirrina **Superfamily Argonautoidea **Superfamily Octopodoidea ***Family Amphitretidae ****subfamily Bolitaeninae ****subfamily Vitreledonellinae ***Family Bathypolypodidae ***Family Eledonidae ***Family Enteroctopodidae ***Family Megaleledonidae Megaleledonidae is a family of octopuses in the superfamily Octopodoidea. It was formerly placed in the family Octopodidae ''sensu lato'' as the subfamily Megaleledoninae but more recent studies have raised this taxon as a valid family. Reproduc ... ***Family Octopodidae References {{Taxonbar, from=Q20817899 Octopuses ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Octopuses
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 earl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japetella
''Japetella'' is a genus of pelagic octopods from the subfamily Bolitaeninae in the family Amphitretidae. It contains at least one species but another two have been questionably raised with ''Japetella heathi'' being of doubtful validity, although currently accepted and ''Japetella taningi'' being classed as a ''nomen dubium''. The genus contains bioluminescent 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 Fungus, fungi, microorganisms including ... species. ''Japetella diaphana'' inhabits the oxygen minimum zone of the eastern tropical Pacific Ocean. It is a species of midwater octopus which is relatively abundant in the Gulf of Mexico compared to the Monterey Bay. It has a bioluminescent, yellow ring which starts at the base of its tentacles, of which all are of the same size. The arms are also very short, no lon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vitreledonella
''Vitreledonella'' is a genus of mesopelagic octopods from the family Amphitretidae which contains two species, one of which is the glass octopus. These octopods have the sucker on their arms arranged in a single series with the suckers widely separated from each other. The third left arm is hectocotylised with a spherical vesicle at the distal end and in males the other arms have suckers which are enlarged beyond the web. The eye has strong lateral compression with a near rectangular shape in lateral view and with the width equal to the diameter of the lens. There is a ventral, blunt rostrum-like extension on the eye which contains iridescent tissue above the eye. The opening to the mantle is broad, the radula is multicuspid and linear in form with the first and second lateral tooth each being unicuspid, which means that this species has a heteroglossan radula. The long and slender digestive gland is spindle-shaped and the stomach is positioned dorsally to the digestive gland. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphitretinae
''Amphitretus'' is a genus of pelagic gelatinous octopuses. It is the sole genus of subfamily Amphitretinae, one of three subfamilies in the family Amphitretidae and consists of two species. Some authorities consider '' Amphitretus thielei'' as a subspecies In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ... of '' Amphitretus pelagicus'', which would make the genus monotypic. References Tree of Life website gives information about the classification of cephalopod groups Octopuses Cephalopod genera Taxa named by William Evans Hoyle {{octopus-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bolitaeninae
The Bolitaeninae are a subfamily, in the family Amphitretidae, of small, common pelagic octopuses found in all tropical and temperate oceans of the world. The taxonomy of this taxon is not entirely certain; recent research suggests just two genera exist, '' Bolitaena'' and ''Japetella'', both of which are thought to be monotypic by some authorities and under this view, the family would represent two very similar species: '' Bolitaena pygmaea'' and '' Japetella diaphana''. However, currently a second species of ''Bolitaena'', ''B. massyae'' is also recognised. Physical description Bolitaenins are characterised by their small size—up to 8.5 cm or 3.3 in mantle length and 12 cm total length in ''Japetella'' species—and their comparatively short arms, much shorter than their dome-shaped mantles. The arms have a single series of suckers; in males, these suckers are greatly enlarged on the third right arm. In ''Bolitaena'' (but not ''Japetella'') this arm is also ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bolitaena
''Bolitaena'' is a genus of pelagic octopods from the subfamily Bolitaeninae in the family Amphitretidae. It contains two species, a third species ''Bolitaena microcotyla'' is now regarded as a synonym A synonym is a word, morpheme, or phrase that means exactly or nearly the same as another word, morpheme, or phrase in a given language. For example, in the English language, the words ''begin'', ''start'', ''commence'', and ''initiate'' are all ... of '' Haliphron atlanticus''. The genus contains bioluminescent species. References {{Taxonbar, from=Q3805450 Octopuses Cephalopod genera Bioluminescent molluscs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Louis Joubin
Louis Marie Adolphe Olivier Édouard Joubin (27 February 1861 in Épinal – 24 April 1935 in Paris) was a professor at the Muséum national d'Histoire naturelle in Paris. He published works on nemerteans, chaetognatha, cephalopods, and other molluscs. He served as an assistant to Henri de Lacaze-Duthiers, subsequently becoming director of the laboratories at Banyuls-sur-Mer (1882) and Roscoff (1884). Later on, he became an instructor at the University of Rennes,Prosopo Sociétés savantes and in 1903 succeeded Edmond Perrier as ''chaire des mollusques, des vers et des zoophytes'' at the Muséum national d'Histoire ... [...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] |
Taxon Inquirendum
In biological classification, a ''species inquirenda'' is a species of doubtful identity requiring further investigation. The use of the term in English-language biological literature dates back to at least the early nineteenth century. The term taxon inquirendum is broader in meaning and refers to an incompletely defined taxon of which the taxonomic validity is uncertain or disputed by different experts or is impossible to identify the taxon. Further characterization is required. See also * Glossary of scientific naming * '' Candidatus'', a proposed taxa based on incomplete evidence * '' incertae sedis'', a taxon of uncertain position in a classification * ''nomen dubium In binomial nomenclature, a ''nomen dubium'' (Latin for "doubtful name", plural ''nomina dubia'') is a scientific name that is of unknown or doubtful application. Zoology In case of a ''nomen dubium'' it may be impossible to determine whether a s ...'', a name of unknown or doubtful application * Open nome ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
