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Semicassis Labiata
''Semicassis labiata'' (formerly also known as ''Phalium labiatum'') is a species of large predatory sea snail, a marine gastropod mollusc. This species is in the subfamily Cassinae, the "helmet shells" and "bonnet shells", which feed on sea urchins. Subspecies * ''Semicassis labiata iheringi'' (Carcelles, 1953)WoRMS (2010). ''Semicassis labiata''. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=533621 on 2011-02-17 * ''Semicassis labiata labiata'' (G. Perry, 1811) * ''Semicassis labiata zeylanica'' (Lamarck, 1822) Distribution This species occurs in New Zealand Powell A. W. B. (1979). William Collins Publishers Ltd, Auckland . Description The maximum recorded shell Shell may refer to: Architecture and design * Shell (structure), a thin structure ** Concrete shell, a thin shell of concrete, usually with no interior columns or exterio ...
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George Perry (naturalist)
George Perry (born 1771) was a 19th-century English naturalist, a malacologist Malacology is the branch of invertebrate zoology that deals with the study of the Mollusca (mollusks or molluscs), the second-largest phylum of animals in terms of described species after the arthropods. Mollusks include snails and slugs, clams, .... Perry is known for two natural history works: *''Arcana; or the museum of natural history'', published monthly from January 1810 to September 1811 *''Conchology, or the natural history of shells'', published in 181online See also * :Taxa named by George Perry (naturalist) References * J. H. Gatliff, 1902. Notes on Perry's “Conchology”. Victorian Naturalist 19(5):75-76 * C. Hedley, 1902. On Perry's Australian shells. Proceedings of the Linnean Society of New South Wales 27(1): 24-28 * G. M. Mathews & T. Iredale, 1913. “Perry’s Arcana” – an overlooked work. Victorian Naturalist 29: 7-16 * A. T. Hopwood, 1946. Miscellaneous notes. 1. Perry's ...
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Semicassis Labiata Zeylanica 01
''Semicassis'' is a genus of medium-sized predatory sea snails, marine gastropod molluscs in the subfamily Cassinae within the family Cassidae, the helmet snails and bonnet snails. Species According to the World Register of Marine Species (WoRMS), the following species with valid names are included within the genus ''Semicassis'': *''Semicassis adcocki'' (Sowerby III, 1896) *''Semicassis angasi'' (Iredale, 1927) *''Semicassis bisulcata'' (Schubert & Wagner, 1829) *''Semicassis bondarevi'' Mühlhäusser & Parth, 1993 *''Semicassis bulla'' Habe, 1961 *''Semicassis canaliculata'' (Bruguière, 1792) * ''Semicassis cancellata'' (Lamarck, 1803) *''Semicassis centiquadrata'' (Valenciennes, 1832) *''Semicassis craticulata'' (Euthyme, 1885) * ''Semicassis decipiens'' (Kilburn, 1980) * ''Semicassis dorae'' (Kreipl & Mühlhäusser, 1996) * ''Semicassis dougthorni'' Dekkers, 2013 *''Semicassis faurotis'' (Jousseaume, 1888) * ''Semicassis fernandesi'' (Kilburn, 1975) * † ''Semicassis fibrata ...
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Gastropod Shell
The gastropod shell is part of the body of a Gastropoda, gastropod or snail, a kind of mollusc. The shell is an exoskeleton, which protects from predators, mechanical damage, and dehydration, but also serves for muscle attachment and calcium storage. Some gastropods appear shell-less (slugs) but may have a remnant within the mantle, or in some cases the shell is reduced such that the body cannot be retracted within it (semi-slug). Some snails also possess an operculum that seals the opening of the shell, known as the Aperture (mollusc), aperture, which provides further protection. The study of mollusc shells is known as conchology. The biological study of gastropods, and other molluscs in general, is malacology. Shell morphology terms vary by species group. Shell layers The gastropod shell has three major layers secreted by the Mantle (mollusc), mantle. The calcareous central layer, tracum, is typically made of calcium carbonate precipitated into an organic matrix known as c ...
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HarperCollins
HarperCollins Publishers LLC is one of the Big Five English-language publishing companies, alongside Penguin Random House, Simon & Schuster, Hachette, and Macmillan. The company is headquartered in New York City and is a subsidiary of News Corp. The name is a combination of several publishing firm names: Harper & Row, an American publishing company acquired in 1987—whose own name was the result of an earlier merger of Harper & Brothers (founded in 1817) and Row, Peterson & Company—together with Scottish publishing company William Collins, Sons (founded in 1819), acquired in 1989. The worldwide CEO of HarperCollins is Brian Murray. HarperCollins has publishing groups in the United States, Canada, the United Kingdom, Australia, New Zealand, Brazil, India, and China. The company publishes many different imprints, both former independent publishing houses and new imprints. History Collins Harper Mergers and acquisitions Collins was bought by Rupert Murdoch's News Corpora ...
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Arthur William Baden Powell
Arthur William Baden Powell (4 April 1901 – 1 July 1987) was a New Zealand malacologist, naturalist and palaeontologist, a major influence in the study and classification of New Zealand molluscs through much of the 20th century. He was known to his friends and family by his third name, "Baden". Biography Early life The name Baden had been a given name in a Powell family since 1731, when Susannah Powell née Thistlethwayte (1696–1762) gave to her child (1731–1792) the maiden name of her mother, Susannah Baden (1663–1692). The name Baden, particularly when associated with the surname Powell, became famous in 1900–1901, the year Arthur William Baden Powell was born, because of the siege of Mafeking, the most famous British action in the Second Boer War, which turned the British commander of the besieged, Robert Baden-Powell, into a national hero. Throughout the British Empire, babies were named after him. No family connection has yet been established between Arthur W ...
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List Of Marine Molluscs Of New Zealand
This is a list of the marine molluscs of the country of New Zealand, which are a part of the molluscan fauna of New Zealand, which is a part of the biodiversity of New Zealand. Marine molluscs include marine gastropods (sea snails and sea slugs), bivalves (such as pipis, cockles, oysters, mussels, scallops), octopuses, squid and other classes of Mollusca. This list does not include the land and freshwater species. Aplacophora * '' Proneomenia quincarinata'' Polyplacophora Acanthochitonidae * '' Acanthochitona thileniusi'' * '' Acanthochitona zelandica'' * '' Craspedochiton rubiginosus'' - ''Craspedochiton rubiginosus rubiginosus'', ''Craspedochiton rubiginosus oliveri'' * ''Cryptoconchus porosus'' * ''Notoplax aupouria'' * ''Notoplax cuneata'' * ''Notoplax facilis'' * ''Notoplax latalamina'' * ''Notoplax mariae'' * ''Notoplax violacea'' * ''Notoplax websteri'' Mopaliidae * '' Aerilamma murdochi'' * '' Diaphoroplax biramosus'' * ''Frembleya egregia'' * '' Guildingia obtecta ...
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Semicassis Labiata Iredalei 01
''Semicassis'' is a genus of medium-sized predatory sea snails, marine gastropod molluscs in the subfamily Cassinae within the family Cassidae, the helmet snails and bonnet snails. Species According to the World Register of Marine Species (WoRMS), the following species with valid names are included within the genus ''Semicassis'': *''Semicassis adcocki'' (Sowerby III, 1896) *''Semicassis angasi'' (Iredale, 1927) *''Semicassis bisulcata'' (Schubert & Wagner, 1829) *''Semicassis bondarevi'' Mühlhäusser & Parth, 1993 *''Semicassis bulla'' Habe, 1961 *''Semicassis canaliculata'' (Bruguière, 1792) * ''Semicassis cancellata'' (Lamarck, 1803) *''Semicassis centiquadrata'' (Valenciennes, 1832) *''Semicassis craticulata'' (Euthyme, 1885) * ''Semicassis decipiens'' (Kilburn, 1980) * ''Semicassis dorae'' (Kreipl & Mühlhäusser, 1996) * ''Semicassis dougthorni'' Dekkers, 2013 *''Semicassis faurotis'' (Jousseaume, 1888) * ''Semicassis fernandesi'' (Kilburn, 1975) * † ''Semicassis fibrata ...
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Cassinae
The Cassidae are a taxonomic family of medium-sized, large, and sometimes very large sea snails commonly called helmet snails or bonnet snails. These are marine gastropod mollusks in the superfamily Tonnoidea and the clade Littorinimorpha.Gofas, S. (2010). Cassidae. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=22999 on 2011-01-19 About 60 species comprise the family Cassidae; an example is '' Cypraecassis rufa''. Nomenclature Despite its incorrect formation (the correct one would be Cassididae, based on the genitive form of Cassis), the ICZN has placed the name Cassidae Latreille, 1825 on the official list of family names, therefore avoiding homonymy with Cassididae Stephens, 1831 (based on Cassida Linnaeus, 1758, a chrysomelid beetle); Opinion 1023 (1974, Bulletin of Zoological Nomenclature 31: 127-129). Distribution Species of th ...
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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 ...
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Subfamily
In biological classification, a subfamily (Latin: ', plural ') is an auxiliary (intermediate) taxonomic rank, next below family but more inclusive than genus. Standard nomenclature rules end subfamily botanical names with "-oideae", and zoological names with "-inae". See also * International Code of Nomenclature for algae, fungi, and plants * International Code of Zoological Nomenclature * Rank (botany) * Rank (zoology) In biological classification, taxonomic rank is the relative level of a group of organisms (a taxon) in an ancestral or hereditary hierarchy. A common system consists of species, genus, family, order, class, phylum, kingdom, domain. While ... Sources {{biology-stub ...
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Mollusc
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000  extant species of molluscs are recognized. The number of fossil species is estimated between 60,000 and 100,000 additional species. The proportion of undescribed species is very high. Many taxa remain poorly studied. Molluscs are the largest marine phylum, comprising about 23% of all the named marine organisms. Numerous molluscs also live in freshwater and terrestrial habitats. They are highly diverse, not just in size and anatomical structure, but also in behaviour and habitat. The phylum is typically divided into 7 or 8 taxonomic classes, of which two are entirely extinct. Cephalopod molluscs, such as squid, cuttlefish, and octopuses, are among the most neurologically advanced of all invertebrates—and either the giant squid or the colossal squid is the largest known invertebrate species. The gastropods ...
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