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Labracetabulum Monocentris
''Labracetabulum'' is a genus of trematodes in the family Opecoelidae. Cribb's review of ''Labracetabulum'' synonymised it with ''Prolabria'' Reimer, 1987, which led to the synonymisation of ''P. monocentris'' Reimer, 1987 to ''L. monocentris'' (Reimer, 1987) Cribb, 2005. Morphology Species of ''Labracetabulum'' are distinguished by the lack of a cirrus-sac, the use of separate ani proximal to the excretory pore to open the caeca, and distinct anterior and posterior lips on the ventral sucker. Species *''Labracetabulum gephyroberici ''Labracetabulum'' is a genus of trematodes in the family Opecoelidae. Cribb's review of ''Labracetabulum'' synonymised it with ''Prolabria'' Reimer, 1987, which led to the synonymisation of ''P. monocentris'' Reimer, 1987 to ''L. monocentris ...'' Reimer, 1987 *'' Labracetabulum monocentris'' (Reimer, 1987) Cribb, 2005Cribb, T. H. (2005). Family Opecoelidae Ozaki, 1925. In Bray, R., Gibson, D. & Jones, A. (Eds.), ''Keys to the Trematoda, ... [...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] |
Trematoda
Trematoda is a Class (biology), class of flatworms known as flukes. They are obligate parasite, obligate internal Parasitism, parasites with a complex biological life cycle, life cycle requiring at least two Host_(biology), hosts. The intermediate host, in which asexual reproduction occurs, is usually a snail. The definitive host, where the flukes sexually reproduce, is a vertebrate. Infection by trematodes can cause disease in all five traditional vertebrate classes: mammals, birds, amphibians, reptiles, and fish. Etymology Trematodes are commonly referred to as flukes. This term can be traced back to the Old English name for flounder, and refers to the flattened, rhomboidal shape of the organisms. Taxonomy There are 18,000 to 24,000 known species of trematodes, divided into two subclasses — the Aspidogastrea and the Digenea. Aspidogastrea is the smaller subclass, comprising 61 species. These flukes mainly infect Bivalvia, bivalves and Osteichthyes, bony fishes.https://www.bi ... [...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] |
Opecoelidae
Opecoelidae is a family of trematodes. It is the largest digenean family with over 90 genera and nearly 900 species, almost solely found in marine and freshwater teleost fishes.Bray, Rodney A., Cribb, Thomas H., Littlewood, D. Timothy J. & Waeschenbach, Andrea (2016). The molecular phylogeny of the digenean family Opecoelidae Ozaki, 1925 and the value of morphological characters, with the erection of a new subfamily. ''Folia Parasitologica'', 63, 1–13. It was considered by Bray ''et al.'' to belong in the superfamily Opecoeloidea Ozaki, 1925 or the Brachycladioidea Odhner, 1905. Genera Family Opecoelidae *Subfamily Bathycreadiinae Martin, Huston, Cutmore & Cribb, 2018Martin, S. B., Huston, D. C., Cutmore, S. C. & Cribb, T. H. (2018). A new classification for deep-sea opecoelid trematodes based on the phylogenetic position of some unusual taxa from shallow-water, herbivorous fishes off south-west Australia. ''Zoological Journal of the Linnean Society'', 186(2), 385–413. **Genus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synonym (taxonomy)
The Botanical and Zoological Codes of nomenclature treat the concept of synonymy differently. * In botanical nomenclature, a synonym is a scientific name that applies to a taxon that (now) goes by a different scientific name. For example, Linnaeus was the first to give a scientific name (under the currently used system of scientific nomenclature) to the Norway spruce, which he called ''Pinus abies''. This name is no longer in use, so it is now a synonym of the current scientific name, ''Picea abies''. * In zoology, moving a species from one genus to another results in a different binomen, but the name is considered an alternative combination rather than a synonym. The concept of synonymy in zoology is reserved for two names at the same rank that refers to a taxon at that rank - for example, the name ''Papilio prorsa'' Linnaeus, 1758 is a junior synonym of ''Papilio levana'' Linnaeus, 1758, being names for different seasonal forms of the species now referred to as ''Araschnia le ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cirrus (biology)
In biology, a cirrus , plural ''cirri'', , (from the Latin ''cirrus'' meaning a ''curl-like tuft or fringe'') is a long, thin structure in an animal similar to a tentacle but generally lacking the tentacle's strength, flexibility, thickness, and sensitivity. In the sheep liver fluke, for example, the ''cirrus'' is the worm's muscular penis and when not in use is retained within a ''cirrus sac'' or ''pouch'' near the animal's head. The same structure exists in the various ''Taenia'' species of tapeworm. In the clam worms, however, the cirrus is the tentacular process or growth on each of the feet (''parpodia''), either the ''dorsal cirrus'' or the ''ventral cirrus'', and has nothing to do with reproduction. Among the bristleworms, a cirrus is a tentacular growth near the head or notopodium containing sense organs and may be either dorsal, ventral, or lamellar. Among the ribbonworms, the ''caudal cirrus'' is a small thread-like growth at the posterior end of the worm. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anus
The anus (Latin, 'ring' or 'circle') is an opening at the opposite end of an animal's digestive tract from the mouth. Its function is to control the expulsion of feces, the residual semi-solid waste that remains after food digestion, which, depending on the type of animal, includes: matter which the animal cannot digest, such as bones; Summary at food material after the nutrients have been extracted, for example cellulose or lignin; ingested matter which would be toxic if it remained in the digestive tract; and dead or excess gut bacteria and other endosymbionts. Amphibians, reptiles, and birds use the same orifice (known as the cloaca) for excreting liquid and solid wastes, for copulation and egg-laying. Monotreme mammals also have a cloaca, which is thought to be a feature inherited from the earliest amniotes via the therapsids. Marsupials have a single orifice for excreting both solids and liquids and, in females, a separate vagina for reproduction. Female placental mamm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cecum
The cecum or caecum is a pouch within the peritoneum that is considered to be the beginning of the large intestine. It is typically located on the right side of the body (the same side of the body as the appendix (anatomy), appendix, to which it is joined). The word cecum (, plural ceca ) stems from the Latin ''wikt:caecus, caecus'' meaning blindness, blind. It receives chyme from the ileum, and connects to the ascending colon of the large intestine. It is separated from the ileum by the ileocecal valve (ICV) or Bauhin's valve. It is also separated from the Large intestine#Structure, colon by the cecocolic junction. While the cecum is usually intraperitoneal, the ascending colon is Retroperitoneal space, retroperitoneal. In herbivores, the cecum stores food material where bacteria are able to break down the cellulose. In humans, the cecum is involved in absorption of salts and electrolytes and lubricates the solid waste that passes into the large intestine. Structure Develo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Labracetabulum Gephyroberici
''Labracetabulum'' is a genus of trematodes in the family Opecoelidae. Cribb's review of ''Labracetabulum'' synonymised it with ''Prolabria'' Reimer, 1987, which led to the synonymisation of ''P. monocentris'' Reimer, 1987 to ''L. monocentris'' (Reimer, 1987) Cribb, 2005. Morphology Species of ''Labracetabulum'' are distinguished by the lack of a cirrus-sac, the use of separate ani Ani ( hy, Անի; grc-gre, Ἄνιον, ''Ánion''; la, Abnicum; tr, Ani) is a ruined medieval Armenian city now situated in Turkey's province of Kars, next to the closed border with Armenia. Between 961 and 1045, it was the capital of th ... proximal to the excretory pore to open the caeca, and distinct anterior and posterior lips on the ventral sucker. Species *'' Labracetabulum gephyroberici'' Reimer, 1987 *'' Labracetabulum monocentris'' (Reimer, 1987) Cribb, 2005Cribb, T. H. (2005). Family Opecoelidae Ozaki, 1925. In Bray, R., Gibson, D. & Jones, A. (Eds.), ''Keys to the Trematoda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Labracetabulum Monocentris
''Labracetabulum'' is a genus of trematodes in the family Opecoelidae. Cribb's review of ''Labracetabulum'' synonymised it with ''Prolabria'' Reimer, 1987, which led to the synonymisation of ''P. monocentris'' Reimer, 1987 to ''L. monocentris'' (Reimer, 1987) Cribb, 2005. Morphology Species of ''Labracetabulum'' are distinguished by the lack of a cirrus-sac, the use of separate ani proximal to the excretory pore to open the caeca, and distinct anterior and posterior lips on the ventral sucker. Species *''Labracetabulum gephyroberici ''Labracetabulum'' is a genus of trematodes in the family Opecoelidae. Cribb's review of ''Labracetabulum'' synonymised it with ''Prolabria'' Reimer, 1987, which led to the synonymisation of ''P. monocentris'' Reimer, 1987 to ''L. monocentris ...'' Reimer, 1987 *'' Labracetabulum monocentris'' (Reimer, 1987) Cribb, 2005Cribb, T. H. (2005). Family Opecoelidae Ozaki, 1925. In Bray, R., Gibson, D. & Jones, A. (Eds.), ''Keys to the Trematoda, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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