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Pyganodon
''Pyganodon'' is a genus of freshwater mussels, aquatic bivalve mollusks in the subfamily Unioninae of the family Unionidae, the river mussels.MolluscaBase eds. (2022). MolluscaBase. Pyganodon Crosse & P. Fischer, 1894. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=571699 on 2022-03-13 Species within the genus ''Pyganodon'' * '' Pyganodon cataracta'' (Say, 1817) * '' Pyganodon fragilis'' (Lamarck, 1819) * '' Pyganodon gibbosa'' (Say, 1824) * ''Pyganodon grandis ''Pyganodon grandis'', the giant floater, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. This species is fast-growing, large, and has a short lifespan. This species is native to the Un ...'' (Say, 1829) * '' Pyganodon lacustris'' (I. Lea, 1857) ;Synonyms: * ''Pyganodon implicata'' (Say, 1829): synonym of '' Utterbackiana implicata'' (Say, 1829) * ''Pyganodon lugubris'' (Say, 1829): synonym of ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyganodon Fragilis
''Pyganodon'' is a genus of freshwater mussels, aquatic bivalve mollusks in the subfamily Unioninae of the family Unionidae, the river mussels.MolluscaBase eds. (2022). MolluscaBase. Pyganodon Crosse & P. Fischer, 1894. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=571699 on 2022-03-13 Species within the genus ''Pyganodon'' * '' Pyganodon cataracta'' (Say, 1817) * '' Pyganodon fragilis'' (Lamarck, 1819) * '' Pyganodon gibbosa'' (Say, 1824) * ''Pyganodon grandis ''Pyganodon grandis'', the giant floater, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. This species is fast-growing, large, and has a short lifespan. This species is native to the Un ...'' (Say, 1829) * '' Pyganodon lacustris'' (I. Lea, 1857) ;Synonyms: * ''Pyganodon implicata'' (Say, 1829): synonym of '' Utterbackiana implicata'' (Say, 1829) * ''Pyganodon lugubris'' (Say, 1829): synonym of ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyganodon
''Pyganodon'' is a genus of freshwater mussels, aquatic bivalve mollusks in the subfamily Unioninae of the family Unionidae, the river mussels.MolluscaBase eds. (2022). MolluscaBase. Pyganodon Crosse & P. Fischer, 1894. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=571699 on 2022-03-13 Species within the genus ''Pyganodon'' * '' Pyganodon cataracta'' (Say, 1817) * '' Pyganodon fragilis'' (Lamarck, 1819) * '' Pyganodon gibbosa'' (Say, 1824) * ''Pyganodon grandis ''Pyganodon grandis'', the giant floater, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. This species is fast-growing, large, and has a short lifespan. This species is native to the Un ...'' (Say, 1829) * '' Pyganodon lacustris'' (I. Lea, 1857) ;Synonyms: * ''Pyganodon implicata'' (Say, 1829): synonym of '' Utterbackiana implicata'' (Say, 1829) * ''Pyganodon lugubris'' (Say, 1829): synonym of ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyganodon Cataracta
''Anodonta cataracta,'' now ''Pyganodon cataracta'', is a species of large freshwater mussel, an aquatic bivalve mollusc in the family Unionidae, the river mussels. Its common name is the eastern floater. Subspecies *''Pyganodon cataracta'' subsp. ''cataracta'' *''Pyganodon cataracta'' subsp. ''marginata'' Description ''Pyganodon cataracta '' can reach a size of . Distribution and habitat This mussel is present in freshwater habitats along the Atlantic coast of North America, ranging from Alabama to some parts of Canada. It is typically found in soft-bottomed ponds, rivers and small lakes. Taxonomy Like many other of its relatives, the eastern floater was thought to be in the genus ''Anodonta'', but was since moved to other genera such as ''Pyganodon'', ''Utterbackia ''Utterbackia'' is a genus of freshwater mussels, aquatic bivalve mollusks in the family Unionidae The Unionidae are a family of freshwater mussels, the largest in the order Unionida, the bivalve molluscs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyganodon Lacustris
''Pyganodon lacustris'' is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. It is endemic to the United States, where it is known to occur in Illinois, Ohio, Michigan, New York, Indiana and Wisconsin. It may also occur in the Great Lakes and into Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ..., however its full range has not been fully assessed. It is commonly called the lake floater. Description ''Pyganodon lacustris'' varies in size with the largest found to be around 20 centimeters (8 inches) with an average of around 10 centimeters (4 inches). They have an elliptical shape and is generally long and thin. The ventral is straight to slightly curved and color ranges from yellow-green in adolescence to dark brown or b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyganodon Grandis
''Pyganodon grandis'', the giant floater, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. This species is fast-growing, large, and has a short lifespan. This species is native to the United States and southeastern Canada. Original description (Say 1829): "Shell very large, subovate; disk unequally wrinkled and undulated transversely, dark yellowish brown; umbo elevated; beak slightly elevated, with generally, two or three small sinuous, acute undulations; hinge margin slightly arquated, sometimes nearly rectilinear, somewhat angulated at its anterior termination, thence the edge descends by a nearly rectilinear, or slightly concave line to the anterior margin, which is considerably narrowed; sinus of the hinge margin concave; posterior margin widely rounded; within white margined, particularly before, with dusky." References * Binney, W.G. 1858. The complete writings of Thomas Say on the conchology of the United States. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyganodon Gibbosa
''Pyganodon gibbosa'' is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. This species is endemic to the Altamaha River basin in Georgia of the United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie .... References gibbosa Molluscs of the United States Bivalves described in 1824 Taxonomy articles created by Polbot {{Unionidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unionidae
The Unionidae are a family of freshwater mussels, the largest in the order Unionida, the bivalve molluscs sometimes known as river mussels, or simply as unionids. The range of distribution for this family is world-wide. It is at its most diverse in North America, with about 297 recognised taxa, but China and Southeast Asia also support very diverse faunas. Freshwater mussels occupy a wide range of habitats, but most often occupy lotic waters, i.e. flowing water such as rivers, streams and creeks. Origin and early diversification The recent phylogenetic study reveals that the Unionidae most likely originated in Southeast and East Asia in the Jurassic, with the earliest expansions into North America and Africa (since the mid-Cretaceous) followed by the colonization of Europe and India (since the Paleocene). Life history Unionidae burrow into the substrate, with their posterior margins exposed. They pump water through the incurrent aperture, obtaining oxygen and food. They remove ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unioninae
Unioninae is a subfamily of freshwater mussels in the family Unionidae. This superfamily has a wide distribution, being found throughout Eurasia, North America (including Central America) and Africa. Systematics The following classification is based on MolluscaBase and the MUSSEL Project database: * Tribe Anodontini Rafinesque, 1820 ** Genus ''Alasmidonta'' Say, 1818 ** Genus ''Anodonta'' Lamarck, 1799 ** Genus '' Anodontoides'' C. T. Simpson, 1898 ** Genus ''Arcidens'' C. T. Simpson, 1900 ** Genus †'' Cyclanodonta'' Starobogatov, 1970 ** Genus ''Lasmigona'' Rafinesque, 1831 ** Genus '' Lepidodesma'' C. T. Simpson, 1896 ** Genus †'' Modelliella'' Starobogatov, 1970 ** Genus ''Pegias'' C. T. Simpson, 1900 ** Genus ''Pseudanodonta'' Bourguignat, 1877 ** Genus '' Pseudodontoideus'' Frierson, 1927 ** Genus ''Pyganodon'' Crosse & P. Fischer, 1894 ** Genus †'' Sichuanoconcha'' X.-Z. Liu, 1984 ** Genus ''Simpsonaias'' Frierson, 1914 ** Genus '' Simpsonella'' Cockerell, 1903 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freshwater Mussel
Freshwater bivalves are one kind of freshwater mollusc, along with freshwater snails. They are bivalves that live in fresh water as opposed to salt water, which is the main habitat type for bivalves. The majority of species of bivalve molluscs live in the sea, but in addition, a number of different families live in fresh water (and in some cases, also in brackish water). These families belong to two different evolutionary lineages (freshwater mussels and freshwater clams), and the two groups are not closely related. Freshwater bivalves have a simple morphology that varies among taxa, and are distributed around most regions of the world. Species in the two groups vary greatly in size. Some pea clams (''Pisidium'' species) have an adult size of only 3 mm. In contrast, one of the largest species of freshwater bivalves is the swan mussel, in the family Unionidae; it can grow to a length of 20 cm, and usually lives in lakes or slow rivers. Freshwater pearl mussels are eco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aquatic Animal
An aquatic animal is any animal, whether invertebrate or vertebrate, that lives in water for most or all of its lifetime. Many insects such as mosquitoes, mayflies, dragonflies and caddisflies have aquatic larvae, with winged adults. Aquatic animals may breathe air or extract oxygen from water through specialised organs called gills, or directly through the skin. Natural environments and the animals that live in them can be categorized as aquatic (water) or terrestrial (land). This designation is polyphyletic. Description The term aquatic can be applied to animals that live in either fresh water or salt water. However, the adjective marine is most commonly used for animals that live in saltwater, i.e. in oceans, seas, etc. Aquatic animals (especially freshwater animals) are often of special concern to conservationists because of the fragility of their environments. Aquatic animals are subject to pressure from overfishing, destructive fishing, marine pollution, hunting, and cli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bivalve
Bivalvia (), in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged parts. As a group, bivalves have no head and they lack some usual molluscan organs, like the radula and the odontophore. They include the clams, oysters, cockles, mussels, scallops, and numerous other families that live in saltwater, as well as a number of families that live in freshwater. The majority are filter feeders. The gills have evolved into ctenidia, specialised organs for feeding and breathing. Most bivalves bury themselves in sediment, where they are relatively safe from predation. Others lie on the sea floor or attach themselves to rocks or other hard surfaces. Some bivalves, such as the scallops and file shells, can swim. The shipworms bore into wood, clay, or stone and live inside these substances. The shell of a bivalve is composed of calc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
