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Lucinida
Lucinida (formerly Lucinoida) is a taxonomic order of saltwater clams, marine bivalve molluscs. Families In 2010, a new proposed classification system for the Bivalvia was published in by Bieler, Carter & Coan, revising the classification of the Bivalvia.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 Lucinoida (now Lucinida) thus became an order of its own. It includes the following two superfamilies: *Superfamily: Lucinoidea **Family: Lucinidae ** Family: † Mactromyidae ** Family: † Paracyclidae *Superfamily: Thyasiroidea **Family: Thyasiridae Thyasiridae is a family of bivalve molluscs, including the cleft clams, in the order Lucinida. Genera and species * '' Adontorhina'' S. S. Berry, 1947 ** '' Adontorhina cyclia'' S. S. Berry, 1947 ** '' Adontorhina keegani'' Barry & McCormack ... References Bivalve o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lucinoidea
Lucinidae, common name hatchet shells, is a family of saltwater clams, marine bivalve molluscs. These bivalves are remarkable for their endosymbiosis with sulphide-oxidizing bacteria. Characteristics The members of this family have a worldwide distribution. They are found in muddy sand or gravel at or below low tide mark. But they can also be found at bathyal depths. They have characteristically rounded shells with forward-facing projections. The shell is predominantly white and buff and is often thin-shelled. The shells are equivalve with unequal sides. The umbones (the apical part of each valve) are just anterior to mid-line. The adductor scars are unequal: the anterior are narrower and somewhat longer than the posterior. They are partly or largely separated from the pallial line. The valves are flattened and etched with concentric or radial rings. Each valve bears two cardinal and two plate-like lateral teeth. These molluscs do not have siphons but the extremely long foot m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lucinidae
Lucinidae, common name hatchet shells, is a family of saltwater clams, marine bivalve molluscs. These bivalves are remarkable for their endosymbiosis with sulphide-oxidizing bacteria. Characteristics The members of this family have a worldwide distribution. They are found in muddy sand or gravel at or below low tide mark. But they can also be found at bathyal depths. They have characteristically rounded shells with forward-facing projections. The shell is predominantly white and buff and is often thin-shelled. The shells are equivalve with unequal sides. The umbones (the apical part of each valve) are just anterior to mid-line. The adductor scars are unequal: the anterior are narrower and somewhat longer than the posterior. They are partly or largely separated from the pallial line. The valves are flattened and etched with concentric or radial rings. Each valve bears two cardinal and two plate-like lateral teeth. These molluscs do not have siphons but the extremely long foot make ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lucinida
Lucinida (formerly Lucinoida) is a taxonomic order of saltwater clams, marine bivalve molluscs. Families In 2010, a new proposed classification system for the Bivalvia was published in by Bieler, Carter & Coan, revising the classification of the Bivalvia.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 Lucinoida (now Lucinida) thus became an order of its own. It includes the following two superfamilies: *Superfamily: Lucinoidea **Family: Lucinidae ** Family: † Mactromyidae ** Family: † Paracyclidae *Superfamily: Thyasiroidea **Family: Thyasiridae Thyasiridae is a family of bivalve molluscs, including the cleft clams, in the order Lucinida. Genera and species * '' Adontorhina'' S. S. Berry, 1947 ** '' Adontorhina cyclia'' S. S. Berry, 1947 ** '' Adontorhina keegani'' Barry & McCormack ... References Bivalve o ... [...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] |
Thyasiroidea
Thyasiridae is a family of bivalve molluscs, including the cleft clams, in the order Lucinida. Genera and species * '' Adontorhina'' S. S. Berry, 1947 ** '' Adontorhina cyclia'' S. S. Berry, 1947 ** '' Adontorhina keegani'' Barry & McCormack, 2007 ** '' Adontorhina lynnae'' Valentich-Scott, 2000 ** '' Adontorhina pisum'' (Dall, 1908) ** '' Adontorhina similis'' Barry & McCormack, 2007 ** '' Adontorhina sphaericosa'' Scott, 1986 ** '' Adontorhina zelayai'' Valentich-Scott, 2012 * '' Ascetoaxinus'' P. G. Oliver & Frey, 2014 * '' Axinodon'' A. E. Verrill and Bush, 1898 ** '' Axinodon redondoensis'' (T. A. Burch, 1941) ** '' Axinodon symmetros'' (Jeffreys, 1876) * '' Axinopsida'' Keen and Chavan, 1951 ** '' Axinopsida cordata'' (A. E. Verrill and Bush, 1898) ** '' Axinopsida orbiculata'' (G. O. Sars, 1878) ** '' Axinopsida serricata'' (Carpenter, 1864) ** '' Axinopsida viridis'' ( Dall, 1901) * '' Axinulus'' A. E. Verrill and Bush, 1898 ** '' Axinulus careyi'' Bernard, 1979 ** '' Ax ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thyasiridae
Thyasiridae is a family of bivalve molluscs, including the cleft clams, in the order Lucinida. Genera and species * '' Adontorhina'' S. S. Berry, 1947 ** '' Adontorhina cyclia'' S. S. Berry, 1947 ** '' Adontorhina keegani'' Barry & McCormack, 2007 ** '' Adontorhina lynnae'' Valentich-Scott, 2000 ** '' Adontorhina pisum'' (Dall, 1908) ** '' Adontorhina similis'' Barry & McCormack, 2007 ** '' Adontorhina sphaericosa'' Scott, 1986 ** '' Adontorhina zelayai'' Valentich-Scott, 2012 * '' Ascetoaxinus'' P. G. Oliver & Frey, 2014 * '' Axinodon'' A. E. Verrill and Bush, 1898 ** '' Axinodon redondoensis'' (T. A. Burch, 1941) ** '' Axinodon symmetros'' (Jeffreys, 1876) * '' Axinopsida'' Keen and Chavan, 1951 ** '' Axinopsida cordata'' (A. E. Verrill and Bush, 1898) ** '' Axinopsida orbiculata'' (G. O. Sars, 1878) ** '' Axinopsida serricata'' ( Carpenter, 1864) ** '' Axinopsida viridis'' ( Dall, 1901) * '' Axinulus'' A. E. Verrill and Bush, 1898 ** '' Axinulus careyi'' Bernard, 1979 ** '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxonomy (biology)
In biology, taxonomy () is the scientific study of naming, defining ( circumscribing) and classifying groups of biological organisms based on shared characteristics. Organisms are grouped into taxa (singular: taxon) and these groups are given a taxonomic rank; groups of a given rank can be aggregated to form a more inclusive group of higher rank, thus creating a taxonomic hierarchy. The principal ranks in modern use are domain, kingdom, phylum (''division'' is sometimes used in botany in place of ''phylum''), class, order, family, genus, and species. The Swedish botanist Carl Linnaeus is regarded as the founder of the current system of taxonomy, as he developed a ranked system known as Linnaean taxonomy for categorizing organisms and binomial nomenclature for naming organisms. With advances in the theory, data and analytical technology of biological systematics, the Linnaean system has transformed into a system of modern biological classification intended to reflect the evolu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marine (ocean)
The ocean (also the sea or the world ocean) is the body of salt water that covers approximately 70.8% of the surface of Earth and contains 97% of Earth's water. An ocean can also refer to any of the large bodies of water into which the world ocean is conventionally divided."Ocean." ''Merriam-Webster.com Dictionary'', Merriam-Webster, |
Molluscs
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant taxon, extant species of molluscs are recognized. The number of fossil species is estimated between 60,000 and 100,000 additional species. 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. Numerous molluscs also live in freshwater mollusc, freshwater and Terrestrial molluscs, terrestrial habitats. They are highly diverse, not just in size and anatomical structure, but also in behaviour and habitat. 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, neurologically advanced of all inve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
