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Robsonella Fontaniana
''Robsonella'' is a small genus of octopuses in the family Octopodidae. It contains two described 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 s .... ''Robsonella'' octopuses can be found on the central-south coast of Chile. If an octopus’ first lateral tooth in the radula is crescent shaped; this allows you to identify it as a ''Robsonella fontaniana''. One species in the genus, ''Robsonella fontaniana,'' inhabit the coastal waters of Chile and range from northern Peru to Golfo Nuevo in Argentina. ''Robsonella fontaniana'' are very small (under 50 mm mantle length), have rugged skin and each eye has a fleshy expansion. Species * '' Robsonella fontaniana'' (D'Orbigny, 1834 in 1834-1847) * '' Robsonella huttoni'' Benham, 1943 References External links * * https://www ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robsonella Fontaniana
''Robsonella'' is a small genus of octopuses in the family Octopodidae. It contains two described 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 s .... ''Robsonella'' octopuses can be found on the central-south coast of Chile. If an octopus’ first lateral tooth in the radula is crescent shaped; this allows you to identify it as a ''Robsonella fontaniana''. One species in the genus, ''Robsonella fontaniana,'' inhabit the coastal waters of Chile and range from northern Peru to Golfo Nuevo in Argentina. ''Robsonella fontaniana'' are very small (under 50 mm mantle length), have rugged skin and each eye has a fleshy expansion. Species * '' Robsonella fontaniana'' (D'Orbigny, 1834 in 1834-1847) * '' Robsonella huttoni'' Benham, 1943 References External links * * https://www ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robsonella Huttoni
''Robsonella'' is a small genus of octopuses in the family Octopodidae. It contains two described species. ''Robsonella'' octopuses can be found on the central-south coast of Chile. If an octopus’ first lateral tooth in the radula is crescent shaped; this allows you to identify it as a ''Robsonella fontaniana''. One species in the genus, ''Robsonella fontaniana,'' inhabit the coastal waters of Chile and range from northern Peru to Golfo Nuevo in Argentina. ''Robsonella fontaniana'' are very small (under 50 mm mantle length), have rugged skin and each eye has a fleshy expansion. Species * ''Robsonella fontaniana ''Robsonella'' is a small genus of octopuses in the family Octopodidae. It contains two described 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 ...'' (D'Orbigny, 1834 in 1834-1847) * '' Robsonella huttoni'' Benham, 1943 References External links * * https://www. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Adam (malacologist)
William Adam (27 Januari 1909, The Hague – 3 November 1988, Brussels) was a Dutch / Belgian malacologist who specialised in cephalopods. Adam described a number of cuttlefish and bobtail squid species, including '' Euprymna hoylei'', '' Sepia cottoni'', '' Sepia dollfusi'', '' Sepia dubia'', '' Sepia reesi'', '' Sepia sewelli'', '' Sepia thurstoni'', '' Sepia vercoi'', and '' Sepiola knudseni''. Adam was born as the son of Constance Jeannette Barkhuijsen and the merchant sailor William Adam. After his schooling in The Hague he visited Java in 1926-27. Upon his return home he studied biology at Utrecht University, obtaining his PhD in 1933 with a dissertation on terrestrial mollusk glands. He then took a position at the Museum of Natural Sciences The Museum of Natural Sciences of Belgium (french: Muséum des sciences naturelles de Belgique, nl, Museum voor Natuurwetenschappen van België) is a museum dedicated to natural history, located in Brussels, Belgium. The mus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alcide D'Orbigny
Alcide Charles Victor Marie Dessalines d'Orbigny (6 September 1802 – 30 June 1857) was a French naturalist who made major contributions in many areas, including zoology (including malacology), palaeontology, geology, archaeology and anthropology. D'Orbigny was born in Couëron ( Loire-Atlantique), the son of a ship's physician and amateur naturalist. The family moved to La Rochelle in 1820, where his interest in natural history was developed while studying the marine fauna and especially the microscopic creatures that he named "foraminiferans". In Paris he became a disciple of the geologist Pierre Louis Antoine Cordier (1777–1861) and Georges Cuvier. All his life, he would follow the theory of Cuvier and stay opposed to Lamarckism. South American era D'Orbigny travelled on a mission for the Paris Museum, in South America between 1826 and 1833. He visited Venezuela, Colombia, Ecuador, Peru, Bolivia, Chile, Argentina, Paraguay, and Brazil, and returned to France with an ... [...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] |
Nemertea
Nemertea is a phylum of animals also known as ribbon worms or proboscis worms, consisting of 1300 known species. Most ribbon worms are very slim, usually only a few millimeters wide, although a few have relatively short but wide bodies. Many have patterns of yellow, orange, red and green coloration. The foregut, stomach and intestine run a little below the midline of the body, the anus is at the tip of the tail, and the mouth is under the front. A little above the gut is the rhynchocoel, a cavity which mostly runs above the midline and ends a little short of the rear of the body. All species have a proboscis which lies in the rhynchocoel when inactive but everts to emerge just above the mouth to capture the animal's prey with venom. A highly extensible muscle in the back of the rhynchocoel pulls the proboscis in when an attack ends. A few species with stubby bodies filter feed and have suckers at the front and back ends, with which they attach to a host. The brain is a rin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...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] |
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] |
Octopodidae
The Octopodidae comprise the family containing the majority of known octopus species. Genera The World Register of Marine Species lists these genera: *'' Abdopus'' Norman & Finn, 2001 *'' Ameloctopus'' Norman, 1992 *'' Amphioctopus'' P. Fischer, 1882 *'' Callistoctopus'' Taki, 1964 *'' Cistopus'' Gray, 1849 *'' Euaxoctopus'' Voss, 1971 *'' Galeoctopus'' Norman, Boucher & Hochberg, 2004 *'' Grimpella'' Robson, 1928 *'' Hapalochlaena'' Robson, 1929 *'' Histoctopus'' Norman, Boucher-Rodoni & Hochberg, 2009 *'' Lepidoctopus'' Haimovici & Sales, 2019 *'' Macrochlaena'' Robson, 1929 *''Macroctopus'' Robson, 1928 *'' Macrotritopus'' Grimpe, 1922 *''Octopus'' Cuvier, 1798 *'' Paroctopus'' Naef, 1923 *''Pinnoctopus ''Pinnoctopus'' is a genus of octopuses in the family (biology), family Octopodidae. It is of doubtful validity. Species * ''Pinnoctopus cordiformis'' (Jean René Constant Quoy, Quoy and Joseph Paul Gaimard, Gaimard, 1832. ''nomen dubium'' * '' ...'' d'Orbigny, 1845 *'' Pt ... [...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] |
