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Mytilopsis Sallei
''Mytilopsis sallei'', the black-striped mussel, is a small marine bivalve mollusc in the family Dreissenidae, the false mussels. It is closely related and ecologically similar to the zebra mussel, ''Dreissena polymorpha''. It is also considered as highly invasive species. Anatomy and morphology ''Mytilopsis'' shell morphology is highly variable. Shells range from 20-40mm in length, and about 10-20mm in width. The shell is brownish, greyish, and yellowish, with dark brown and white stripes. The animal inside is light orange and yellow. Taxonomy There are seven known species of ''Mytilopsis'', but because the morphology is so unclearly recorded, many are considered synonyms for each other. The ''Mytilopsis'' species has a highly variable shell morphology which has led to confusion. ''Mytilopsis'' are one of three genera of the family ''Dreissenidae'', along with ''Congeria'' and ''Dreissena''. ''Mytilopsis'' differs from ''Dreissena'' in that ''Mytilopsis'' have an internal a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
César Auguste Récluz
César Auguste Récluz (17 March 1799 in Agde – 11 July 1873 in Paris) was a French malacologist.Guy Devaux: Un Pharmacien malacologiste, César Récluz. In: Revue d'Histoire de la Pharmacie. Vol 67, N0. 402, 2019, ISSN 0035-2349, S. 183–200. He worked as a pharmacist in Vaugirard; as an amateur malacologist, he specialized in the family Neritidae, of which he described approximately 200 species. Much of his conchology collection was acquired by Jules Paul Benjamin Delessert. In 1853 Sauveur Abel Aubert Petit de la Saussaye named the sea snail Sea snails are slow-moving marine (ocean), marine gastropod Mollusca, molluscs, usually with visible external shells, such as whelk or abalone. They share the Taxonomic classification, taxonomic class Gastropoda with slugs, which are distinguishe ... genus '' Recluzia'' in his honour. He also has several species named after him; examples being '' Conus recluzianus'', ''Polinices reclusianus,'' ''Paramya recluzi,'' and '' Glossaulax re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bivalve
Bivalvia () or bivalves, in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class (biology), class of aquatic animal, aquatic molluscs (marine and freshwater) that have laterally compressed soft bodies enclosed by a calcified exoskeleton consisting of a hinged pair of half-bivalve shell, shells known as valve (mollusc), valves. As a group, bivalves have no head and lack some typical molluscan organs such as the radula and the odontophore. Their gills have evolved into ctenidium (mollusc), ctenidia, specialised organs for feeding and breathing. Common bivalves include clams, oysters, Cockle (bivalve), cockles, mussels, scallops, and numerous other family (biology), families that live in saltwater, as well as a number of families that live in freshwater. Majority of the class are benthic filter feeders that bury themselves in sediment, where they are relatively safe from predation. Others lie on the sea floor or attach themselves to rocks or other h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mollusc
Mollusca is a phylum of protostome, protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant taxon, extant species of molluscs are recognized, making it the second-largest animal phylum after Arthropoda. The number of additional fossil species is estimated between 60,000 and 100,000, and the proportion of undescribed species is very high. Many taxa remain poorly studied. Molluscs are the largest marine biology, marine phylum, comprising about 23% of all the named marine organisms. They are highly diverse, not just in size and anatomical structure, but also in behaviour and habitat, as numerous groups are freshwater mollusc, freshwater and even terrestrial molluscs, terrestrial species. The phylum is typically divided into 7 or 8 taxonomy (biology), taxonomic class (biology), classes, of which two are entirely extinct. Cephalopod molluscs, such as squid, cuttlefish, and octopuses, are among the most neurobiology, neurologi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dreissenidae
The Dreissenidae are a family of small freshwater aquatic bivalve molluscs, commonly called ''mussels'' although not at all closely related to true mussels. The shells of these bivalves are shaped somewhat like those of true mussels, which they also resemble in attaching themselves to a hard substrate such as stone using a byssus; however, this group is more closely related to the venus clams (Veneridae). Genera Genera within the family Dreissenidae include: * '' Congeria'', a unique genus of cave-dwelling bivalves * '' Dreissena'', the type genus of the family * '' Mytilopsis'' * '' Rheodreissena'', a South American genus described in 2018 Shell morphology The shells of species of mussels in this family range from 20 to 40 mm in their maximum dimension, and about half as wide across. The shell outline is bent, with one margin usually somewhat incurved, and the other strongly curved outwardly. The shell is opaque and robust; in coloration it is yellowish, brownish or greyi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zebra Mussel
The zebra mussel (''Dreissena polymorpha'') is a small freshwater mussel, an Aquatic animal, aquatic bivalve mollusk in the family Dreissenidae. The species originates from the lakes of southern Russia and Ukraine, but has been accidentally Introduced species, introduced to numerous other areas and has become an invasive species in many countries worldwide. Since the 1980s, the species has invaded the Great Lakes, Hudson River, Lake Travis, Finger Lakes, Lake Bonaparte (New York), Lake Bonaparte, and Lake Simcoe. The adverse effects of dreissenid mussels on freshwater systems have led to their ranking as one of the world's most invasive aquatic species. The species was first described in 1769 by German zoologist Peter Simon Pallas in the Ural River, Ural, Volga River, Volga, and Dnieper River, Dnieper Rivers. Zebra mussels get their name from a striped pattern commonly seen on their shells, though it is not universally present. They are usually about the size of a fingernail, but ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genera
Genus (; : genera ) is a taxonomic rank above species and below family as used in the biological classification of living and fossil organisms as well as viruses. 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 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 of an ancestral taxon are grouped together (i.e. phylogenetic analysis should clearly demonstrate both monophyly and validity as a separate lineag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
