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Ranella Kaiparaensis
''Ranella'' is a genus of large warm-water and tropical sea snails, marine gastropod molluscs in the family Ranellidae, the tritons. Shell description The shells of species within this genus are very large and solid, with a tall spire, a rounded aperture, a broadly flanged outer lip, and a moderately long siphonal canal, which is flexed and inclined to the left. The varices are prominent and rounded, but are hollowed out on the inside. Species Species within the genus ''Ranella'' include: * ''Ranella australasia'' (Perry, 1811) * †'' Ranella bellardii'' (Weinkauff, 1868) * '' Ranella gemmifera'' (Euthyme, 1889) * †'' Ranella kaiparaensis'' (Finlay, 1924) * ''Ranella olearium'' Linnaeus, 1758 ;Synonyms: *''Ranella reticularis'' (Linnaeus, 1758) sensu Deshayes, 1839: synonym of ''Ranella olearium'' (Linnaeus, 1758) References * Lamarck J.B. (1816). Liste des objets représentés dans les planches de cette livraison. In: Tableau encyclopédique et méthodique des trois rà ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ranella Australasia
''Ranella australasia'' is a species of large predatory sea snail, a marine gastropod mollusk in the family Ranellidae, the triton snails, triton shells or tritons. Description Distribution THis species is endemic to Australia and occurs off New South Wales, South Australia, Tasmania, Victoria and Western Australia Western Australia (commonly abbreviated as WA) is a state of Australia occupying the western percent of the land area of Australia excluding external territories. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to th ... References * Wilson, B. 1993. Australian Marine Shells. Prosobranch Gastropods. Kallaroo, Western Australia : Odyssey Publishing Vol. 1 408 pp. External links * Ranellidae Gastropods described in 1811 {{Ranellidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siphonal Canal
The siphonal canal is an anatomical feature of the shells of certain groups of sea snails within the clade Neogastropoda. Some sea marine gastropods have a soft tubular anterior extension of the mantle called a siphon through which water is drawn into the mantle cavity and over the gill and which serves as a chemoreceptor to locate food. Siphonal canals allow for active transport of water to sensory organs inside the shell. Organisms without siphonal canals in their shells rely on passive or diffuse transport or water into their shell. Those with siphonal canals have a direct inhalant stream of water that interacts with sensory organs to detect concentration and direction of a stimulus, such as food or mates. In certain groups of carnivorous snails, where the siphon is particularly long, the structure of the shell has been modified in order to house and protect the soft structure of the siphon. Thus the siphonal canal is a semi-tubular extension of the aperture of the shell th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastropod Genera
The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. There are many thousands of species of sea snails and slugs, as well as freshwater snails, freshwater limpets, and land snails and slugs. The class Gastropoda contains a vast total of named species, second only to the insects in overall number. The fossil history of this class goes back to the Late Cambrian. , 721 families of gastropods are known, of which 245 are extinct and appear only in the fossil record, while 476 are currently extant with or without a fossil record. Gastropoda (previously known as univalves and sometimes spelled "Gasteropoda") are a major part of the phylum Mollusca, and are the most highly diversified class in the phylum, with 65,000 to 80,000 living snail and slug species. The anatomy, behavior, feeding, and repro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New York City
New York, often called New York City or NYC, is the List of United States cities by population, most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the List of United States cities by population density, most densely populated major city in the United States, and is more than twice as populous as second-place Los Angeles. New York City lies at the southern tip of New York (state), New York State, and constitutes the geographical and demographic center of both the Northeast megalopolis and the New York metropolitan area, the largest metropolitan area in the world by urban area, urban landmass. With over 20.1 million people in its metropolitan statistical area and 23.5 million in its combined statistical area as of 2020, New York is one of the world's most populous Megacity, megacities, and over 58 million people live within of the city. New York City is a global city, global Culture of New ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ranella Olearium
''Ranella olearium'', common name the wandering triton or the little frog triton or olive trumpet, is a species of large sea snail, a Marine (ocean), marine gastropod mollusc in the family (biology), family Ranellidae, the tritons.Gofas, S. (2010). Ranella olearium (Linnaeus, 1758). 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=141115 on 2010-11-08 Synonyms Over the course of time, this species has been named many times: * ''Argobuccinum dilleri'' Anderson, F.M. & B. Martin, 1914 * ''Argobuccinum giganteum curvicauda'' (f) Coen, G.S., 1941 * ''Argobuccinum giganteum dilatata'' (f) Coen, G.S., 1941 * ''Argobuccinum giganteum duplonodosum'' Settepassi, F., 1970 * ''Argobuccinum giganteum exile'' (f) Settepassi, F., 1970 * ''Argobuccinum giganteum inflatum'' Settepassi, F., 1970 * ''Argobuccinum giganteum intusdentata'' (f) Coen, G.S., 1941 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ranella Kaiparaensis
''Ranella'' is a genus of large warm-water and tropical sea snails, marine gastropod molluscs in the family Ranellidae, the tritons. Shell description The shells of species within this genus are very large and solid, with a tall spire, a rounded aperture, a broadly flanged outer lip, and a moderately long siphonal canal, which is flexed and inclined to the left. The varices are prominent and rounded, but are hollowed out on the inside. Species Species within the genus ''Ranella'' include: * ''Ranella australasia'' (Perry, 1811) * †'' Ranella bellardii'' (Weinkauff, 1868) * '' Ranella gemmifera'' (Euthyme, 1889) * †'' Ranella kaiparaensis'' (Finlay, 1924) * ''Ranella olearium'' Linnaeus, 1758 ;Synonyms: *''Ranella reticularis'' (Linnaeus, 1758) sensu Deshayes, 1839: synonym of ''Ranella olearium'' (Linnaeus, 1758) References * Lamarck J.B. (1816). Liste des objets représentés dans les planches de cette livraison. In: Tableau encyclopédique et méthodique des trois rà ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ranella Gemmifera
''Ranella gemmifera'' is a species of predatory sea snail, a marine gastropod mollusk in the family Ranellidae, the triton snails, triton shells or tritons. Distribution Description The maximum recorded shell length is 126 mm.Welch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". '' PLoS ONE'' 5(1): e8776. . Habitat Minimum recorded depth is 0 m. Maximum recorded depth is 70 m. References * Euthyme rère The Rère () is a long river in the Cher and Loir-et-Cher departments in central France. Its source is at Presly. It flows generally west. It is a left tributary of the Sauldre, into which it flows at Villeherviers. Departments and communes alo ... 1889. Description de quelques espèces nouvelles de la faune marine exotique. Bulletin de la Société Malacologique de France 6: 259-281 * Martens, E. von. (1904). Die beschalten Gastropoden der deutschen Tiefsee-Expedition 1898–1899. A. Systematisch-geographischer Teil. Wissen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ranella Bellardii
''Ranella'' is a genus of large warm-water and tropical sea snails, marine gastropod molluscs in the family Ranellidae, the tritons. Shell description The shells of species within this genus are very large and solid, with a tall spire, a rounded aperture, a broadly flanged outer lip, and a moderately long siphonal canal, which is flexed and inclined to the left. The varices are prominent and rounded, but are hollowed out on the inside. Species Species within the genus ''Ranella'' include: * ''Ranella australasia'' (Perry, 1811) * †'' Ranella bellardii'' (Weinkauff, 1868) * ''Ranella gemmifera'' (Euthyme, 1889) * †''Ranella kaiparaensis'' (Finlay, 1924) * ''Ranella olearium'' Linnaeus, 1758 ;Synonyms: *''Ranella reticularis'' (Linnaeus, 1758) sensu Deshayes, 1839: synonym of ''Ranella olearium'' (Linnaeus, 1758) References * Lamarck J.B. (1816). Liste des objets représentés dans les planches de cette livraison. In: Tableau encyclopédique et méthodique des trois règ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Varix (mollusc)
A varix () is an anatomical feature of the shell of certain sea snails, marine gastropod molluscs. Gastropods whose shells have varices are primarily families and species within the taxonomic groups Littorinimorpha and Neogastropoda. The varix is a thickened axial ridge, a subcylindrical protrusion, in the shell which exists in some families of marine gastropods. It is an important shell character in generic classification. A varix is located at intervals around the whorl, and is formed by considerable thickening of the outer lip during a resting stage in the growth of the shell. In other words, in gastropods whose shells have varices, the shells are characterised by episodic growth - the shell grows in spurts, and during the resting phase the varix forms. In many gastropod whose shells have varices, for example the Cassinae, the varix is essentially merely a thickening and swelling of the shell at that point. But in some genera within the family Muricidae, such as ''Chicoreu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aperture (mollusc)
The aperture is an opening in certain kinds of mollusc shells: it is the main opening of the shell, where the head-foot part of the body of the animal emerges for locomotion, feeding, etc. The term ''aperture'' is used for the main opening in gastropod shells, scaphopod shells, and also for ''Nautilus'' and ammonite shells. The word is not used to describe bivalve shells, where a natural opening between the two shell valves in the closed position is usually called a ''gape''. Scaphopod shells are tubular, and thus they have two openings: a main anterior aperture and a smaller posterior aperture. As well as the aperture, some gastropod shells have additional openings in their shells for respiration; this is the case in some Fissurellidae (keyhole limpets) where the central smaller opening at the apex of the shell is called an orifice, and in the Haliotidae (abalones) where the row of respiratory openings in the shell are also called orifices. In gastropods In some prosobranch ... [...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] |
Spire (mollusc)
A spire is a part of the coiled shell of molluscs. The spire consists of all of the whorls except for the body whorl. Each spire whorl represents a rotation of 360°. A spire is part of the shell of a snail, a gastropod mollusc, a gastropod shell, and also the whorls of the shell in ammonites, which are fossil shelled cephalopods. In textbook illustrations of gastropod shells, the tradition (with a few exceptions) is to show most shells with the spire uppermost on the page. The spire, when it is not damaged or eroded, includes the protoconch (also called the nuclear whorls or the larval shell), and most of the subsequent teleoconch whorls (also called the postnuclear whorls), which gradually increase in area as they are formed. Thus the spire in most gastropods is pointed, the tip being known as the "apex". The word "spire" is used, in an analogy to a church spire or rock spire, a high, thin, pinnacle. The "spire angle" is the angle, as seen from the apex, at which a spire ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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