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Hyrioidea
Hyriidae is a taxonomic family of pearly freshwater mussels, aquatic bivalve molluscs in the order Unionida. This family is native to South America, Australia, New Zealand and New Guinea. Like all members of that order, they go through a larval stage that is parasitic on fish (see glochidium). The classification recognized by Banarescu (1995) uses three subfamilies. This family contains eighteen genera. Subfamilies and genera Hyriinae Genera within the subfamily Hyriinae, from South America, include: * '' Paxyodon'' * '' Castalina'' * '' Chevronaias'' ; Tribe Castaliini * ''Castalia'' * '' Castaliella'' * '' Callonaia'' ; Tribe Hyriini * '' Prisodon'' * '' Triplodon'' ; Tribe Rhipidodontini * ''Diplodon'' Cucumerunioninae Genera within the subfamily Cucumerunioninae, from Australasia, include: * '' Echyridella'' * ''Cucumerunio'' * ''Hyridella'' * '' Virgus'' Velesunioninae Genera within the subfamily Velesunioninae, from Australasia, include: * '' Alathyria'' **''Alathyr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unionida
Unionida is a monophyletic order of freshwater mussels, aquatic bivalve molluscs.Bieler R., Carter J.G. & Coan E.V. (2010). ''Classification of Bivalve families''. pp. 113–133, in: Bouchet P. & Rocroi J.-P. (2010), ''Nomenclator of Bivalve Families''. Malacologia 52(2): 1–184. The order includes most of the larger freshwater mussels, including the freshwater pearl mussels. The most common families are the Unionidae and the Margaritiferidae. All have in common a larval stage that is temporarily parasitic on fish, nacreous shells, high in organic matter, that may crack upon drying out, and siphons too short to permit the animal to live deeply buried in sediment. Taxonomy Fossil evidence suggests a Permian origin for the order, making it incredibly ancient and a survivor of the Permian-Triassic mass extinction. Morphology The shells of these mussels are variable in shape, but usually equivalve and elongate. They have solid, nacreous valves with a pearly interior, radia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valve (mollusc)
A valve is each articulating part of the shell of a mollusc or another multi-shelled animal such as brachiopods and some crustaceans. Each part is known as a valve or in the case of chitons, a "plate". Members of two classes of molluscs, the Bivalvia (clams) and the Polyplacophora (chitons), have valves. Species within one family of very unusual small sea snails, marine opisthobranch gastropods in the family Juliidae, also have two articulating shells or valves, which resemble those of a bivalve. This exceptional family is commonly known as the bivalved gastropods. Gastropods in general are sometimes called "univalves", because in those that have a shell, the shell is usually in one part. Chitons The valves of chitons are eight dorsal, articulated shell plates, which are frequently coloured and sculpted. After death the girdle that holds the plates together disintegrates and the plates separate. Thus individual plates can be found washed up in beach drift, as shown in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cucumerunio
''Cucumerunio'' is a genus of bivalves belonging to the family Hyriidae. The species of this genus are found in Australia. Species: *'' Cucumerunio novaehollandiae'' *''Cucumerunio websteri ''Cucumerunio websteri'' is a species of freshwater mussel, an aquatic bivalve mollusc in the family Hyriidae. Subspecies * ''Cucumerunio websteri websteri'' (Simpson, 1902) * '' Cucumerunio websteri delli'' McMichael & Hiscock, 1958 De ...'' References {{Taxonbar, from=Q20643337 Hyriidae Bivalve genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diplodon
''Diplodon'' is a genus of freshwater pearly mussel, an aquatic bivalve in the Hyriidae family. The genus includes the following species: * '' Diplodon chilensis'' * '' Diplodon dunkerianus'' * '' Diplodon expansus'' * '' Diplodon fontaineanus'' * ''Diplodon granosus'' * '' Diplodon pfeifferi'' ''Diplodon websteri'' is a synonym for ''Cucumerunio websteri ''Cucumerunio websteri'' is a species of freshwater mussel, an aquatic bivalve mollusc in the family Hyriidae. Subspecies * ''Cucumerunio websteri websteri'' (Simpson, 1902) * '' Cucumerunio websteri delli'' McMichael & Hiscock, 1958 De ...''. References Hyriidae Bivalve genera Taxonomy articles created by Polbot {{bivalve-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
