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Notodiscus Hookeri
''Notodiscus hookeri'' is a species of small air-breathing land snail, a terrestrial gastropod mollusk in the family Charopidae. This snail lives on islands in the sub-Antarctic region. Its shell is unique among land snails in that the organic shell layers contain no chitin. Taxonomy This species was described under the name ''Helix hookeri'' by an English conchologist Lovell Augustus Reeve in 1854. The specific name ''hookeri'' is in honor of English botanist Joseph Dalton Hooker, who collected this snail during the Antarctic expedition led by James Clark Ross. Reeve's type description reads in Latin and in English language as follows: Henry Augustus Pilsbry classified this species as ''Helix hookeri'' in 1887 or within the genus '' Amphidoxa'' as ''Amphidoxa hookeri'' within the family Endodontidae in 1894. Also Alan Solem classified this species within the family Endodontidae in 1968. A subspecies ''Notodiscus hookeri heardensis'' Dell, 1964 was recognized in Heard Isla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Usnea Taylorii
''Usnea taylorii'' is a fruticose lichen in the family Parmeliaceae The Parmeliaceae is a large and diverse family of Lecanoromycetes. With over 2700 species in 71 genera, it is the largest family of lichen-forming fungi. The most speciose genera in the family are the well-known groups: '' Xanthoparmelia'' ( 822 .... Ecology Its predators include the land snail '' Notodiscus hookeri''.Gadea, A., Le Pogam, P., Biver, G., Boustie, J., Le Lamer, A. C., Le Dévéhat, F., & Charrier, M. (2017). "Which Specialized Metabolites Does the Native Subantarctic Gastropod ''Notodiscus hookeri'' Extract from the Consumption of the Lichens ''Usnea taylorii'' and ''Pseudocyphellaria crocata''?". ''Molecules'' 22(3): 425. References taylorii Lichen species Lichens described in 1844 Taxa named by Joseph Dalton Hooker Taxa named by Thomas Taylor (botanist) {{Parmeliaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Terrestrial Animal
Terrestrial animals are animals that live predominantly or entirely on land (e.g. cats, dogs, ants, spiders), as compared with aquatic animals, which live predominantly or entirely in the water (e.g. fish, lobsters, octopuses), and amphibians, which rely on a combination of aquatic and terrestrial habitats (e.g. frogs and newts). Some groups of insects are terrestrial, such as ants, butterflies, earwigs, cockroaches, grasshoppers and many others, while other groups are partially aquatic, such as mosquitoes and dragonflies, which pass their larval stages in water. Terrestrial animals tend to be more developed and intelligent than aquatic animals. Terrestrial classes The term "terrestrial" is typically applied to species that live primarily on the ground, in contrast to arboreal species, which live primarily in trees. There are other less common terms that apply to specific groups of terrestrial animals: *Saxicolous creatures are rock dwelling. "Saxicolous" is derived from t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paludina
''Viviparus'', common name the river snails, is a genus of large, freshwater snails with an operculum, aquatic gastropod mollusks.Bouchet, P. (2014). Viviparus Montfort, 1810. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=154004 on 2014-11-13 They are primitive members of the clade Caenogastropoda. The old name of the genus was ''Paludina''. Distribution This genus is palaearctic in distribution, and is known from the Jurassic to the Recent. Species ''Viviparus'' belongs to the subfamily Viviparinae. Its taxonomy is currently under development and many of its species are often included in other related genera. It includes the following species: * † ''Viviparus achatinoides'' (Deshayes, 1838) * ''Viviparus acerosus'' (Bourguignat, 1862) * † ''Viviparus aitaiensis'' Jekelius, 1932 * † '' Viviparus alexandrieni'' Cobălcescu, 1883 * † '' Viviparus altecarinatus'' Brusina, 1874 * † ''Viviparus altus'' Neum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HMS Terror (1813)
HMS ''Terror'' was a specialised warship and a newly developed bomb vessel constructed for the Royal Navy in 1813. She participated in several battles of the War of 1812, including the Battle of Baltimore with the bombardment of Fort McHenry. She was converted into a polar exploration ship two decades later, and participated in George Back's Arctic expedition of 1836–1837, the successful Ross expedition to the Antarctic of 1839 to 1843, and Sir John Franklin's ill-fated attempt to force the Northwest Passage in 1845, during which she was lost with all hands along with . On 12 September 2016, the Arctic Research Foundation announced that the wreck of ''Terror'' had been found in Nunavut's Terror Bay, off the southwest coast of King William Island. The wreck was discovered south of the location where the ship was reported abandoned, and some from the wreck of HMS ''Erebus'', discovered in 2014. Early history and military service HMS ''Terror'' was a bomb ship built over ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HMS Erebus (1826)
HMS ''Erebus'' was a constructed by the Royal Navy in Pembroke dockyard, Wales, in 1826. The vessel was the second in the Royal Navy named after Erebus, the personification of darkness in Greek mythology. The 372-ton ship was armed with two mortars – one and one – and 10 guns. The ship took part in the Ross expedition of 1839–1843, and was abandoned in 1848 during the third Franklin expedition. The sunken wreck was discovered by the Canadian Victoria Strait expedition in September 2014. Ross expedition After two years' service in the Mediterranean Sea, ''Erebus'' was refitted as an exploration vessel for Antarctic service, and on 21 November 1840 – captained by James Clark Ross – she departed from Van Diemen's Land (now Tasmania) for Antarctica in company with HMS ''Terror''. In January 1841, the crews of both ships landed on Victoria Land, and proceeded to name areas of the landscape after British politicians, scientists, and acquaintances. Mount E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natural History Museum, London
The Natural History Museum in London is a museum that exhibits a vast range of specimens from various segments of natural history. It is one of three major museums on Exhibition Road in South Kensington, the others being the Science Museum and the Victoria and Albert Museum. The Natural History Museum's main frontage, however, is on Cromwell Road. The museum is home to life and earth science specimens comprising some 80 million items within five main collections: botany, entomology, mineralogy, palaeontology and zoology. The museum is a centre of research specialising in taxonomy, identification and conservation. Given the age of the institution, many of the collections have great historical as well as scientific value, such as specimens collected by Charles Darwin. The museum is particularly famous for its exhibition of dinosaur skeletons and ornate architecture—sometimes dubbed a ''cathedral of nature''—both exemplified by the large ''Diplodocus'' cast that domina ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Latin Language
Latin (, or , ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the Roman Republic it became the dominant language in the Italy (geographical region), Italian region and subsequently throughout the Roman Empire. Even after the Fall of the Western Roman Empire, fall of Western Rome, Latin remained the common language of international communication, science, scholarship and academia in Europe until well into the 18th century, when other regional vernaculars (including its own descendants, the Romance languages) supplanted it in common academic and political usage, and it eventually became a dead language in the modern linguistic definition. Latin is a fusional language, highly inflected language, with three distinct grammatical gender, genders (masculine, feminine, and neuter), six or seven ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type Description
A species description is a formal description of a newly discovered species, usually in the form of a scientific paper. Its purpose is to give a clear description of a new species of organism and explain how it differs from species that have been described previously or are related. In order for species to be validly described, they need to follow guidelines established over time. Zoological naming requires adherence to the ICZN code, plants, the ICN, viruses ICTV, and so on. The species description often contains photographs or other illustrations of type material along with a note on where they are deposited. The publication in which the species is described gives the new species a formal scientific name. Some 1.9 million species have been identified and described, out of some 8.7 million that may actually exist. Millions more have become extinct throughout the existence of life on Earth. Naming process A name of a new species becomes valid (available in zo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Clark Ross
Sir James Clark Ross (15 April 1800 – 3 April 1862) was a British Royal Navy officer and polar explorer known for his explorations of the Arctic, participating in two expeditions led by his uncle John Ross, and four led by William Edward Parry, and, in particular, for his own Antarctic expedition from 1839 to 1843. Biography Early life Ross was born in London, the son of George Ross and nephew of John Ross, under whom he entered the Royal Navy on 5 April 1812. Ross was an active participant in the Napoleonic Wars, being present at an action where HMS ''Briseis'', commanded by his uncle, captured ''Le Petit Poucet'' (a French privateer) on 9 October 1812. Ross then served successively with his uncle on HMS ''Actaeon'' and HMS ''Driver''. Arctic exploration Ross participated in John's unsuccessful first Arctic voyage in search of a Northwest Passage in 1818 aboard ''Isabella''. Between 1819 and 1827 Ross took part in four Arctic expeditions under William Ed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joseph Dalton Hooker
Sir Joseph Dalton Hooker (30 June 1817 – 10 December 1911) was a British botanist and explorer in the 19th century. He was a founder of geographical botany and Charles Darwin's closest friend. For twenty years he served as director of the Royal Botanical Gardens, Kew, succeeding his father, William Jackson Hooker, and was awarded the highest honours of British science. Biography Early years Hooker was born in Halesworth, Suffolk, England. He was the second son of the famous botanist Sir William Jackson Hooker, Regius Professor of Botany, and Maria Sarah Turner, eldest daughter of the banker Dawson Turner and sister-in-law of Francis Palgrave. From age seven, Hooker attended his father's lectures at Glasgow University, taking an early interest in plant distribution and the voyages of explorers like Captain James Cook. He was educated at the Glasgow High School and went on to study medicine at Glasgow University, graduating M.D. in 1839. This degree qualified him for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Specific Name (zoology)
In zoological nomenclature, the specific name (also specific epithet or species epithet) is the second part (the second name) within the scientific name of a species (a binomen). The first part of the name of a species is the name of the genus or the generic name. The rules and regulations governing the giving of a new species name are explained in the article species description. For example, the scientific name for humans is ''Homo sapiens'', which is the species name, consisting of two names: ''Homo'' is the " generic name" (the name of the genus) and ''sapiens'' is the "specific name". Historically, ''specific name'' referred to the combination of what are now called the generic and specific names. Carl Linnaeus, who formalized binomial nomenclature, made explicit distinctions between specific, generic, and trivial names. The generic name was that of the genus, the first in the binomial, the trivial name was the second name in the binomial, and the specific the proper term for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chitin
Chitin ( C8 H13 O5 N)n ( ) is a long-chain polymer of ''N''-acetylglucosamine, an amide derivative of glucose. Chitin is probably the second most abundant polysaccharide in nature (behind only cellulose); an estimated 1 billion tons of chitin are produced each year in the biosphere. It is a primary component of cell walls in fungi (especially basidiomycetes and filamentous fungi), the exoskeletons of arthropods such as crustaceans and insects, the radulae, cephalopod beaks and gladii of molluscs and in some nematodes and diatoms. It is also synthesised by at least some fish and lissamphibians. Commercially, chitin is extracted from the shells of crabs, shrimps, shellfishes and lobsters, which are major by-products of the seafood industry. The structure of chitin is comparable to cellulose, forming crystalline nanofibrils or whiskers. It is functionally comparable to the protein keratin. Chitin has proved useful for several medicinal, industrial and biotechnological purpos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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