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Pyrene (gastropod)
''Pyrene'' is a genus of small sea snails, marine gastropod mollusks in the family Columbellidae.Bouchet, P. (2014). Pyrene Röding, 1798. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=204994 on 2014-05-29 Species Species within the genus ''Pyrene'' include: * '' Pyrene albinodulosa ogasawarana'' (Pilsbry, 1904-b) * '' Pyrene aspersa'' (G.B. Sowerby I, 1844) * ''Pyrene decussata'' (G.B. Sowerby I, 1844) * '' Pyrene exima'' (Reeve, 1859 in 1843-65) * '' Pyrene fasciata'' G.B. Sowerby I, 1825 * ''Pyrene flava'' (Bruguière, 1789) * '' Pyrene morrisoni'' Willan, 2001 * '' Pyrene obscura'' (G.B. Sowerby I, 1844) * ''Pyrene obtusa'' (G.B. Sowerby I, 1832) * '' Pyrene ocellatula'' (Hervier, 1899) * '' Pyrene picta'' (Reeve, 1859) * '' Pyrene punctata'' (Bruguière, 1789) * '' Pyrene rapaensis'' K. Monsecour & D. Monsecour, 2018 * ''Pyrene sorongensis'' Van Bruggen, 1956 (taxon inquirendum) * '' Pyrene splendidula'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyrene Obscura
Pyrene is a polycyclic aromatic hydrocarbon (PAH) consisting of four fused benzene rings, resulting in a flat aromatic system. The chemical formula is . This yellow solid is the smallest peri-fused PAH (one where the rings are fused through more than one face). Pyrene forms during incomplete combustion of organic compounds. Occurrence and properties Pyrene was first isolated from coal tar, where it occurs up to 2% by weight. As a peri-fused PAH, pyrene is much more resonance-stabilized than its five-member-ring containing isomer fluoranthene. Therefore, it is produced in a wide range of combustion conditions. For example, automobiles produce about 1 μg/km.Senkan, Selim and Castaldi, Marco (2003) "Combustion" in ''Ullmann's Encyclopedia of Industrial Chemistry'', Wiley-VCH, Weinheim. Reactions Oxidation with chromate affords perinaphthenone and then naphthalene-1,4,5,8-tetracarboxylic acid. Pyrene undergoes a series of hydrogenation reactions and is susceptible to halogen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euplica Festiva
''Euplica festiva'' is a species of sea snail, a marine gastropod mollusk in the family Columbellidae, the dove snails. Description The shell size varies between 7 mm and 11 mm. Distribution This species occurs in the Red Sea, the Gulf of Aden, the Indian Ocean along Chagos, Madagascar, the Seychelles and Réunion and along West India, the Bonin Islands and south of Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north .... * Kilburn R.N. & Marais J.P. (2010) Columbellidae. Pp. 60-104, in: Marais A.P. & Seccombe A.D. (eds), Identification guide to the seashells of South Africa. Volume 1. Groenkloof: Centre for Molluscan Studies. 376 pp. References * Cossignani T. (2005) Nuove Euplica del Madagascar (Gastropoda: Prosobranchia, Neogastropoda, Muricoidea). Malacologia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mitrella Menkeana
Mitrella may refer to: * ''Mitrella'' (gastropod), a genus of mollusks of the family Columbellidae * ''Mitrella'' (plant), a genus of plants of the family Annonaceae {{Genus disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columbella Aureomexicana
''Columbella'' is a genus of small sea snails, marine gastropod mollusks in the family Columbellidae, the dove snails. Species Species within the genus ''Columbella'' include: * '' Columbella adansoni'' Menke, 1853 * ''Columbella aphthaegera'' R.P. Lesson, 1842 * '' Columbella aureomexicana'' (Howard, 1963) * ''Columbella castanea'' G.B. Sowerby, 1832 * '' Columbella costa'' Simone, 2007 * ''Columbella dysoni'' Reeve, 1859 * '' Columbella fuscata'' G.B. Sowerby, 1832 * ''Columbella haemastoma'' Sowerby, 1832 * ''Columbella labiosa'' Sowerby, 1822 * ''Columbella major'' Sowerby, 1832 * '' Columbella marrae'' Garcia E., 1999 * ''Columbella mercatoria'' ( Linnaeus, 1758) * ''Columbella paytensis'' Lesson, 1830 * '' Columbella rustica'' ( Linnaeus, 1758) * '' Columbella rusticoides'' Heilprin, 1886 * ''Columbella socorroensis'' Shasky, 1970 * ''Columbella sonsonatensis'' ( Mörch, 1860) * '' Columbella strombiformis'' Lamarck, 1822 * '' Columbella xiphitella'' Duclos, 1840 ; ''N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zafra Atrata
''Zafra atrata'' is a species of sea snail in the family Columbellidae, the dove snails.MolluscaBase eds. (2023). MolluscaBase. Zafra atrata (A. Gould, 1860). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=511602 on 2023-09-23 Description The length of the shell attains 5 mm. (Original description in Latin) The small, thick shell has an ovate-lanceolate shape. Its color is anthracite. It is surrounded anteriorly by striae. The shell contains six swollen whorls, slightly flattened. The narrow aperture is posteriorly acute. The simple outer lip is posteriorly sinuous and is barely denticulated inside. Distribution This marine species was found off South Africa South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring count ... and o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mitrella Antelmei
Mitrella may refer to: * ''Mitrella'' (gastropod), a genus of mollusks of the family Columbellidae * ''Mitrella'' (plant), a genus of plants of the family Annonaceae {{Genus disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sulcomitrella Aikeni
''Sulcomitrella aikeni'' is a species of sea snail, a marine gastropod mollusk in the family Columbellidae The Columbellidae, the dove snails or dove shells, are a family (biology), family of minute to small sea snails, marine (ocean), marine gastropod mollusks in the order Neogastropoda.Bouchet, P.; Gofas, S. (2010). Columbellidae. In: Bouchet, P.; ..., the dove snails. Description Distribution References * ''Kilburn R.N. & Marais J.P. (2010) Columbellidae. Pp. 60-104'', in: Marais A.P. & Seccombe A.D. (eds), Identification guide to the seashells of South Africa. Volume 1. Groenkloof: Centre for Molluscan Studies. 376 pp. External links * Columbellidae Gastropods described in 2009 {{Columbellidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyrene Splendidula
Pyrene is a polycyclic aromatic hydrocarbon (PAH) consisting of four fused benzene rings, resulting in a flat aromatic system. The chemical formula is . This yellow solid is the smallest peri-fused PAH (one where the rings are fused through more than one face). Pyrene forms during incomplete combustion of organic compounds. Occurrence and properties Pyrene was first isolated from coal tar, where it occurs up to 2% by weight. As a peri-fused PAH, pyrene is much more resonance-stabilized than its five-member-ring containing isomer fluoranthene. Therefore, it is produced in a wide range of combustion conditions. For example, automobiles produce about 1 μg/km.Senkan, Selim and Castaldi, Marco (2003) "Combustion" in ''Ullmann's Encyclopedia of Industrial Chemistry'', Wiley-VCH, Weinheim. Reactions Oxidation with chromate affords perinaphthenone and then naphthalene-1,4,5,8-tetracarboxylic acid. Pyrene undergoes a series of hydrogenation reactions and is susceptible to halogen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyrene Sorongensis
Pyrene is a polycyclic aromatic hydrocarbon (PAH) consisting of four fused benzene rings, resulting in a flat aromatic system. The chemical formula is . This yellow solid is the smallest peri-fused PAH (one where the rings are fused through more than one face). Pyrene forms during incomplete combustion of organic compounds. Occurrence and properties Pyrene was first isolated from coal tar, where it occurs up to 2% by weight. As a peri-fused PAH, pyrene is much more resonance-stabilized than its five-member-ring containing isomer fluoranthene. Therefore, it is produced in a wide range of combustion conditions. For example, automobiles produce about 1 μg/km.Senkan, Selim and Castaldi, Marco (2003) "Combustion" in ''Ullmann's Encyclopedia of Industrial Chemistry'', Wiley-VCH, Weinheim. Reactions Oxidation with chromate affords perinaphthenone and then naphthalene-1,4,5,8-tetracarboxylic acid. Pyrene undergoes a series of hydrogenation reactions and is susceptible to h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyrene Rapaensis
Pyrene is a polycyclic aromatic hydrocarbon (PAH) consisting of four fused benzene rings, resulting in a flat aromatic system. The chemical formula is . This yellow solid is the smallest peri-fused PAH (one where the rings are fused through more than one face). Pyrene forms during incomplete combustion of organic compounds. Occurrence and properties Pyrene was first isolated from coal tar, where it occurs up to 2% by weight. As a peri-fused PAH, pyrene is much more resonance-stabilized than its five-member-ring containing isomer fluoranthene. Therefore, it is produced in a wide range of combustion conditions. For example, automobiles produce about 1 μg/km.Senkan, Selim and Castaldi, Marco (2003) "Combustion" in ''Ullmann's Encyclopedia of Industrial Chemistry'', Wiley-VCH, Weinheim. Reactions Oxidation with chromate affords perinaphthenone and then naphthalene-1,4,5,8-tetracarboxylic acid. Pyrene undergoes a series of hydrogenation reactions and is susceptible to halogen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
