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Calyptraeid
The Calyptraeidae are a family of small to medium-sized marine prosobranch gastropods. MolluscaBase. Calyptraeidae Lamarck, 1809. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=141 on 2019-11-04 This family includes the slipper snails (''Crepidula'' species), the Chinese hat snails, (''Calyptraea'' species), and the cup-and-saucer snails (''Crucibulum'' species) among others. The Calyptraeidae are the only family in the superfamily Calyptraeoidea. This family has no subfamilies according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005. ''Crepidula fornicata'' was brought to Europe on imported American oysters in the late 19th century and is now considered a significant pest in European oyster beds. Description Internally, the shell is distinguished by a shelf-like, cup-like, or half-cup-like structure used for muscle attachment. Some calyptraeids have shells that externally resemble those of limpet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crepidula
''Crepidula'', commonly known as the slipper snails, slipper limpets, or slipper shells, is a genus of sea snails, marine (ocean), marine gastropod mollusks in the family Calyptraeidae. This family includes the slipper snails (''Crepidula''), hat snails (''Calyptraea''), spiny slipper snails (''Bostrycapulus''), and cup-and-saucer snails (''Crucibulum (gastropod), Crucibulum'') as well as ''Crepipatella'', ''Siphopatella'', ''Grandicrepidula'', and ''Maoricrypta''.Bouchet, P.; Gofas, S. (2011). Crepidula Lamarck, 1799. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=137722 on 2011-05-21 These recent changes in the definition of ''Crepidula'' are based on both DNA sequence data as well as anatomical work. Dissections of various calyptraeids show that species that are now placed in ''Grandicrepidula'' and ''Maoricrypta'' are anatomically very different from the true ''Crepidula''. If only the shells are examined this di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crepipatella
''Crepipatella'' is a genus of sea snails, marine gastropod mollusks in the family Calyptraeidae, the slipper snails and cup-and-saucer snails. MolluscaBase eds. (2020). MolluscaBase. Crepipatella Lesson, 1831. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=234136 on 2020-09-26 The snails in this genus were formerly all thought to belong to the genus ''Crepidula'', but DNA sequence data show that they are a separate genus. A recent revision of the South American species has led to some significant taxonomic changes, as well as the addition of a new species - Crepipatella occulta Veliz et al. 2012. Species Species within the genus ''Crepipatella'' include: * ''Crepipatella capensis'' (Quoy and Gaimard, 1832–33) This species is known from the upwelling area of South Africa around Cape Town. These animals have direct development where embryonic nutrition is provided by nurse embryos (termed adelphophagy). ''C. c ... [...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] |
Cowrie
Cowrie or cowry () is the common name for a group of small to large sea snails, marine gastropod mollusks in the family Cypraeidae, the cowries. The term ''porcelain'' derives from the old Italian term for the cowrie shell (''porcellana'') due to their similar appearance. Shells of certain species have historically been used as currency in several parts of the world, as well as being used, in the past and present, very extensively in jewelry, and for other decorative and ceremonial purposes. The cowrie was the shell most widely used worldwide as shell money. It is most abundant in the Indian Ocean, and was collected in the Maldive Islands, in Sri Lanka, along the Indian Malabar coast, in Borneo and on other East Indian islands, in Maluku in the Pacific, and in various parts of the African coast from Ras Hafun to Mozambique. Cowrie shell money was important in the trade networks of Africa, South Asia, and East Asia. In the United States and Mexico, cowrie species inhabit the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grandicrepidula
''Grandicrepidula'' is a genus of sea snails, marine gastropod mollusks in the family Calyptraeidae, the slipper snails or slipper limpets, cup-and-saucer snails, and Chinese hat snails. Species Species within the genus ''Grandicrepidula'' include: * ''Grandicrepidula collinae'' Marshall, 2003 * ''Grandicrepidula grandis ''Grandicrepidula grandis'', common name : the giant slipper limpet, is a species of sea snail, a marine gastropod mollusk in the family Calyptraeidae, the slipper snails or slipper limpets, cup-and-saucer snails, and Chinese hat snails. De ...'' (Middendorff, 1849) References * Marshall B.A. 2003. ''A review of the Recent and Late Cenozoic Calyptraeidae of New Zealand (Mollusca: Gastropoda).'' The Veliger 46(2): 117-144 Calyptraeidae Monotypic gastropod genera {{Calyptraeidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lamarck
Jean-Baptiste Pierre Antoine de Monet, chevalier de Lamarck (1 August 1744 – 18 December 1829), often known simply as Lamarck (; ), was a French naturalist, biologist, academic, and soldier. He was an early proponent of the idea that biological evolution occurred and proceeded in accordance with natural laws. Lamarck fought in the Seven Years' War against Prussia, and was awarded a commission for bravery on the battlefield. Posted to Monaco, Lamarck became interested in natural history and resolved to study medicine. Packard (1901), p. 15. He retired from the army after being injured in 1766, and returned to his medical studies. Lamarck developed a particular interest in botany, and later, after he published the three-volume work ''Flore françoise'' (1778), he gained membership of the French Academy of Sciences in 1779. Lamarck became involved in the Jardin des Plantes and was appointed to the Chair of Botany in 1788. When the French National Assembly founded the Muséum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bostrycapulus
''Bostrycapulus'', commonly known as the spiny slipper snails, is a genus of sea snails, marine gastropod mollusks in the family Calyptraeidae, the slipper snails, cup-and-saucer snails and hat snails. Before 2005, the snails in this genus were all thought to belong to one species, which was known as ''Crepidula aculeata'', the spiny slipper snail.Collin R. (2005). "Development, phylogeny, and taxonomy of'' Bostrycapulus'' (Caenogastropoda: Calyptraeidae), an ancient cryptic radiation". ''Zoological Journal of the Linnean Society'' 144(1): 75-101. . However, morphological and DNA sequence data show that the spiny slipper snails are a monophyletic group that is more closely related to ''Crepipatella'' than it is to ''Crepidula''. Taxonomy Taxonomic history All of the species within the genus'' Bostrycapulus'' were previously assigned to a single species, ''Crepidula aculeata''. However, molecular phylogenetic and anatomical work have shown them to be a separate monophyleti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Zealand
New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island country by area, covering . New Zealand is about east of Australia across the Tasman Sea and south of the islands of New Caledonia, Fiji, and Tonga. The country's varied topography and sharp mountain peaks, including the Southern Alps, owe much to tectonic uplift and volcanic eruptions. New Zealand's capital city is Wellington, and its most populous city is Auckland. The islands of New Zealand were the last large habitable land to be settled by humans. Between about 1280 and 1350, Polynesians began to settle in the islands and then developed a distinctive Māori culture. In 1642, the Dutch explorer Abel Tasman became the first European to sight and record New Zealand. In 1840, representatives of the United Kingdom and Māori chiefs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
