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Potamolithus Rushii
''Potamolithus rushii'' is a species of freshwater snail with an operculum, an aquatic gastropod mollusk in the family Lithoglyphidae. ''Potamolithus rushii'' is the type species of the genus ''Potamolithus''. The specific name ''rushii'' is in honor of Dr. William H. Rush (18??-1918), who collected this species. Distribution The distribution of ''Potamolithus rushii'' includes the Uruguay River near Paysandú (the type locality),Pilsbry H. A. (1911). "Non-marine Mollusca of Patagonia". In: Scott W. B. (ed.) ''Reports of the Princeton University Expedition to Patagonia 1896–1899'' 3513633. ''Potamolithus rushii'' is on page599600plate 38 Uruguay and Argentina.Rumi A., Gregoric D. E. G., Núñez V. & Darrigran G. A. (2008). "Malacología Latinoamericana. Moluscos de agua dulce de Argentina". '' Revista de Biología Tropical'' 56(1): 77-111HTM Description ''Potamolithus rushii'' was originally described by the American malacologist Henry Augustus Pilsbry in 1896. Pilsb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal
Animals are multicellular, eukaryotic organisms in the Kingdom (biology), biological kingdom Animalia. With few exceptions, animals Heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, are Motility, able to move, can Sexual reproduction, reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of Cell (biology), cells, the blastula, during Embryogenesis, embryonic development. Over 1.5 million Extant taxon, living animal species have been Species description, described—of which around 1 million are Insecta, insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have Ecology, complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a Symmetry in biology#Bilate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Suture (gastropod)
In anatomy, a suture is a fairly rigid joint between two or more hard elements of an organism, with or without significant overlap of the elements. Sutures are found in the skeletons or exoskeletons of a wide range of animals, in both invertebrates and vertebrates. Sutures are found in animals with hard parts from the Cambrian period to the present day. Sutures were and are formed by several different methods, and they exist between hard parts that are made from several different materials. Vertebrate skeletons The skeletons of vertebrate animals (fish, amphibians, reptiles, birds, and mammals) are made of bone, in which the main rigid ingredient is calcium phosphate. Cranial sutures The skulls of most vertebrates consist of sets of bony plates held together by cranial sutures. These sutures are held together mainly by Sharpey's fibers which grow from each bone into the adjoining one. Sutures in the ankles of land vertebrates In the type of crurotarsal ankle which is found i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Body Whorl
The body whorl is part of the morphology of the shell in those gastropod mollusks that possess a coiled shell. The term is also sometimes used in a similar way to describe the shell of a cephalopod mollusk. In gastropods In gastropods, the body whorl, or last whorl, is the most recently formed and largest whorl (or revolution) of a spiral or helical shell, terminating in the aperture. It is called the "body whorl" because most of the body of the soft parts of the animal fits into this whorl. The proportional size of the body whorl in gastropod shells differs greatly according to the actual shell morphology. For shells in which the rate of whorl expansion of each revolution around the axis is very high, the aperture and the body whorl are large, and the shell tends to be low spired. The shell of the abalone is a good example of this kind of shell. The opposite tendency can sometimes create a high spire with very little whorl increase per revolution. In these instances, e.g. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columella (gastropod)
The columella (meaning "little column") or (in older texts) pillar is a central anatomical feature of a coiled snail shell, a gastropod shell. The columella is often only clearly visible as a structure when the shell is broken, sliced in half vertically, or viewed as an X-ray image. The columella runs from the apex of the shell to the midpoint of the undersurface of the shell, or the tip of the siphonal canal in those shells which have a siphonal canal. If a snail shell is visualized as a cone of shelly material which is wrapped around a central axis, then the columella more or less coincides spatially with the central axis of the shell. In the case of shells that have an umbilicus, the columella is a hollow structure. The columella of some groups of gastropod shells can have a number of plications or folds (the columellar fold, plaits or plicae), which are usually visible when looking to the inner lip into the aperture of the shell. These folds can be wide or narrow, prominent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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, and cephalopods, along with numerous other kinds, many of which have shells. One division of malacology, conchology, is devoted to the study of mollusk shells. Malacology derives . Fields within malacological research include taxonomy, ecology Ecology () is the study of the relationships between living organisms, including humans, and their physical environment. Ecology considers organisms at the individual, population, community, ecosystem, and biosphere level. Ecology overlaps wi ... and evolution. Applied malacology studies medical, veterinary, and agricultural applications; for example, mollusks as vectors of disease, as in schistosomiasis. Archaeology employs malacology to understand the evolution of the climate, the biota ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Non-marine Molluscs Of Argentina
The non-marine molluscs of Argentina are a part of the molluscan fauna of Argentina. There are hundreds of species of molluscs living in the wild in Argentina. There are a total of ??? species of gastropods, which breaks down to 101Rumi A., Gregoric D. E. G., Núñez V., César I. I., Roche M. A., Tassara M. P., Martín S. M. & Armengol M. F. L. (2006). "Freshwater Gastropoda from Argentina: Species Richness, Distribution Patterns, and an Evaluation of Endangered Species". ''Malacologia'' 49(1): 189–208. species of freshwater gastropods, and ??? species of land gastropods in ?? genera, plus 65 species of bivalves living in the wild. There are ?? non-indigenous species of gastropods (4 freshwater and ?? land species: ?? snails and ?? slugs) and ? species of bivalves in the wild in Argentina. This is a total of ? freshwater non-indigenous species of wild molluscs. ''Potamolithus'' is the largest genus (with highest species richness) of recent freshwater snails in Argentina.R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Non-marine Molluscs Of Uruguay
The non-marine molluscs of Uruguay are a part of the molluscan fauna of Uruguay ( wildlife of Uruguay). A number of species of non-marine molluscs are found in the wild in Uruguay. Freshwater gastropods Freshwater gastropods in the Uruguay include: Ampullariidae - 10 species * '' Asolene platae'' (Maton, 1809) * '' Asolene pulchella'' (Anton, 1839) * ''Asolene spixii'' (d’Orbigny, 1837) * ''Felipponea elongata'' (Dall, 1921) * '' Felipponea iheringi'' (Pilsbry, 1933) * '' Felipponea neritiniformis'' (Dall, 1919) * ''Pomella megastoma'' (G. B. Sowerby I, 1825) * ''Pomacea canaliculata'' (Lamarck, 1822) * ''Pomacea insularum'' (d’Orbigny, 1835) * ''Pomacea scalaris'' (d’Orbigny, 1835) Cochliopidae - 6 species * ''Heleobia adamsi'' (Preston, 1912) * ''Heleobia guaranitica'' (Doering, 1884) * ''Heleobia parchappii'' (d’Orbigny, 1835) * ''Heleobia piscium'' (d’Orbigny, 1835) * ''Heleobia scottii'' (Pilsbry, 1911) * ''Heleobia uruguayana'' (Pilsbry, 1924) Lithoglyphi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paysandú
Paysandú () is the capital of Paysandú Department in western Uruguay. Location The city is located on the banks of the Uruguay River, which forms the border with Argentina. It lies northwest of Montevideo via Route 1 and Route 3, on the junction of the latter with Route 90. As of the census of 2011 it was the fourth-most populated city of the country. A small distance north of the city is the General Artigas Bridge that links Uruguay with the Entre Ríos Province of Argentina, south of the city Colón. History It was founded in October 1756 and had acquired the status of "Villa" (town) before the independence of Uruguay. On 8 June 1863, its status was elevated to "Ciudad" (city) by the Act of Ley Nº 780. General Leandro Gomez led Uruguayan forces to save the town from an invasion by Brazilian forces in 1864–1865. A battle took place on 2 December 1864. Population In 2011 Paysandú had a population of 76,412. It is the fourth largest city in Uruguay, after Montevideo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uruguay River
The Uruguay River ( es, Río Uruguay, ; pt, Rio Uruguai, ) is a major river in South America. It flows from north to south and forms parts of the boundaries of Brazil, Argentina, and Uruguay, separating some of the Argentine provinces of La Mesopotamia from the other two countries. It passes between the states of Santa Catarina and Rio Grande do Sul in Brazil; forms the eastern border of the provinces of Misiones, Corrientes, and Entre Ríos in Argentina; and makes up the western borders of the departments of Artigas, Salto, Paysandú, Río Negro, Soriano, and Colonia in Uruguay. Course The river measures about in length and starts in the Serra do Mar in Brazil, where the Canoas River and the Pelotas River are joined, at about above mean sea level. In this stage the river goes through uneven, broken terrain, forming rapids and falls. Its course through Rio Grande do Sul is not navigable An unusual feature of the Uruguay River is a submerged canyon. This canyon fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paysandú - Puente General Artigas
Paysandú () is the capital of Paysandú Department in western Uruguay. Location The city is located on the banks of the Uruguay River, which forms the border with Argentina. It lies northwest of Montevideo via Route 1 and Route 3, on the junction of the latter with Route 90. As of the census of 2011 it was the fourth-most populated city of the country. A small distance north of the city is the General Artigas Bridge that links Uruguay with the Entre Ríos Province of Argentina, south of the city Colón. History It was founded in October 1756 and had acquired the status of "Villa" (town) before the independence of Uruguay. On 8 June 1863, its status was elevated to "Ciudad" (city) by the Act of Ley Nº 780. General Leandro Gomez led Uruguayan forces to save the town from an invasion by Brazilian forces in 1864–1865. A battle took place on 2 December 1864. Population In 2011 Paysandú had a population of 76,412. It is the fourth largest city in Uruguay, after Montevid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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