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Lethacotyle
''Lethacotyle'' is a genus of polyopisthocotylean monogeneans, included in the family Protomicrocotylidae. The genus includes only two species: ''Lethacotyle fijiensis'' Manter & Price, 1953 Manter, H. W. & Price, D. F. 1953: Some Monogenetic Trematodes of marine fishes from Fiji. Proceedings of the Helminthological Society of Washington, 20, 105-112. , the type-species of the genus, and ''Lethacotyle vera'' Jean-Lou Justine, Justine, Rahmouni, Gey, Schoelinck, & Hoberg, 2013 . Both species are parasitic on the gills of Carangidae, jacks in the Pacific Ocean.Ramalingam, K. 1966: A rare record of ''Lethacotyle'' (Monogenea), its post-oncomiracidial larva with observation on distribution. ''Current Science'', 35, 101-10PDFRamalingam, K. 1968: A redescription of ''Lethacotyle'' (Monogenea) and its post-oncomiracidial larva. Journal of the Madras University B, 35-36, 107-114. They are known only from three localities: off Fiji, Andaman Islands, and New Caledonia. The genus ''Lethacoty ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lethacotyle Fijiensis
''Lethacotyle fijiensis'' is a species of monogeneans of the family Protomicrocotylidae. The species is ectoparasitic on the gills of an unknown Carangidae, carangid fish identified in the original publication as "yellow jack". It is the type-species of the genus ''Lethacotyle'' Manter & Prince, 1953. It has been described from two specimens only by Manter & Prince in 1953;Manter, H. W. & Prince, D. F. 1953: Some Monogenetic Trematodes of marine fishes from Fiji. Proceedings of the Helminthological Society of Washington, 20, 105-112. of these, a single specimen, the holotype has been kept in the US National Parasite Collections and thus was the single specimen of the species, and therefore of the genus, which was available for study. Later, another species of the same genus was described. ''L. fijiensis'' has been found only off Fiji by Manter & Prince in 1953 (the material of the original description, hence the Latin species name, ''fijiensis'', meaning "from Fiji") and alleg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lethacotyle Vera
''Lethacotyle vera'' is a species of monogenean of the family Protomicrocotylidae.Johnston, T. A. & Tiegs, O. W. 1922: New gyrodactyloid trematodes from Australian fishes together with a reclassification of the super-family Gyrodactyloidea. Proceedings of the Linnean Society of New South Wales, 47, 83-131. The species is ectoparasitic on the gills of the brassy trevally, (''Caranx papuensis''), off New Caledonia and was found only in this locality. It is the second species of the genus ''Lethacotyle'' Manter & Prince, 1953 described after the type-species, ''Lethacotyle fijiensis'' Manter & Prince, 1953. The genus ''Lethacotyle'' is special in that its members have no clamps on their posterior attachment organ or haptor, in contrast to most polyopisthocotylean Monogeneans which have clamps. The body of adult ''L. vera'' is 2.7-5.4 millimetres in length. The body is elongate, flat, with a pointed head showing two anterior suckers. There are numerous anterior testes and a si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protomicrocotylidae
Protomicrocotylidae is a family of monogenean parasites in the order Mazocraeidea. The type-genus of the family is '' Protomicrocotyle''. The genus was created in 1922 by Thomas Harvey Johnston and Oscar Werner Tiegs for a worm previously described under the name ''Acanthodiscus mirabile'' by MacCallum in 1918.MacCallum, G. A. 1918: Notes on the genus ''Telorchis'' and other trematodes. Zoopathologica, 1, 81-97. The worm was parasitic on a crevalle jack of the New York Aquarium. Johnston & Tiegs originally proposed to create the subfamily Protomicrocotylinae, which was later raised to family level. Members of this family are elongate, flat, and long of 1 to several millimetres. The reproductive system includes many testes, located in the anterior region of the body between the ceca, and a single posterior ovary. The male copulatory organ usually has spines. The posterior attachment organ or haptor, which attaches the worm to the host, is asymmetrical and has three pairs of sm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyopisthocotylea
Polyopisthocotylea is a subclass of parasitic flatworms in the class Monogenea. WoRMS (2019). Polyopisthocotylea. Accessed at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=119220 on 2019-02-08Yamaguti, S. (1963). Systema Helminthum Volume IV Monogenea and Aspidocotylea: John Wiley & Sons.Hayward, C. (2005). Monogenea Polyopisthocotylea (ectoparasitic flukes). In K. Rohde (Ed.), Marine Parasitology (pp. 55-63): CSIRO, Collingwood, Australia & CABI, Oxon, UK. Classification There are only two subclasses in the class Monogenea: * Monopisthocotylea. The name means "a single posterior sucker" - the attachment organ (the haptor) is simple. * Polyopisthocotylea. The name means "several posterior suckers" - the attachment organ (the haptor) is complex, with several clamps or suckers. The subclass Polyopisthocotylea contains the four following orders: * Order Chimaericolidea * Order Diclybothriidea * Order Mazocraeidea * Order Polystomatidea Examples of species * '' Microco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyopisthocotylea
Polyopisthocotylea is a subclass of parasitic flatworms in the class Monogenea. WoRMS (2019). Polyopisthocotylea. Accessed at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=119220 on 2019-02-08Yamaguti, S. (1963). Systema Helminthum Volume IV Monogenea and Aspidocotylea: John Wiley & Sons.Hayward, C. (2005). Monogenea Polyopisthocotylea (ectoparasitic flukes). In K. Rohde (Ed.), Marine Parasitology (pp. 55-63): CSIRO, Collingwood, Australia & CABI, Oxon, UK. Classification There are only two subclasses in the class Monogenea: * Monopisthocotylea. The name means "a single posterior sucker" - the attachment organ (the haptor) is simple. * Polyopisthocotylea. The name means "several posterior suckers" - the attachment organ (the haptor) is complex, with several clamps or suckers. The subclass Polyopisthocotylea contains the four following orders: * Order Chimaericolidea * Order Diclybothriidea * Order Mazocraeidea * Order Polystomatidea Examples of species * '' Microco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mazocraeidea
Mazocraeidea is an order in the subclass Polyopisthocotylea within class Monogenea. The species of this order have various structures in the clamps of their posterior attachment organ, including additional sclerites in the Gastrocotylidae and related families. However, these additional sclerites, and even the clamps themselves, are lacking in certain members of the family Protomicrocotylidae. Families ;According to PESI * Anthocotylidae Bychowsky, 1957 * Axinidae Monticelli, 1903 * Chauhaneidae Euzet & Trilles, 1960 * Diclidophoridae Fuhrmann, 1928 * Diplozoidae * Discocotylidae Price, 1936 * Gotocotylidae Yamaguti, 1963 * Heteraxinidae Unnithan, 1957 * Hexostomatidae Price, 1936 * Mazocraeidae Price, 1936 * Microcotylidae Taschenberg, 1879 * Octolabeidae * Plectanocotylidae Monticelli, 1903 * Protomicrocotylidae Johnston & Tiegs, 1922 * Pyragraphoridae Yamaguti, 1963 ;According to the World Register of Marine Species: * Allodiscocotylidae * Allopyragraphoridae * Anchor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monogenea
Monogeneans are a group of ectoparasitic flatworms commonly found on the skin, gills, or fins of fish. They have a direct lifecycle and do not require an intermediate host. Adults are hermaphrodites, meaning they have both male and female reproductive structures.L.A. Tubbsa et al. (2005). "Effects of temperature on fecundity in vitro, egg hatching and reproductive development of ''Benedenia seriolae'' and ''Zeuxapta seriolae'' (Monogenea) parasitic on yellowtail kingfish Seriola lalandi". ''International Journal for Parasitology''(35), 315–327. Some monogeneans are oviparous (egg-laying) and some are viviparous (live-bearing). Oviparous varieties release eggs into the water. Viviparous varieties release larvae, which immediately attach to another host. The genus ''Gyrodactylus'' is an example of a viviparous variety, while the genus ''Dactylogyrus'' is an example of an oviparous variety. Signs and symptoms Freshwater fish that become infected with this parasite become let ... [...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] |
Platyhelminthes
The flatworms, flat worms, Platyhelminthes, or platyhelminths (from the Greek language, Greek πλατύ, ''platy'', meaning "flat" and ἕλμινς (root: ἑλμινθ-), ''helminth-'', meaning "worm") are a Phylum (biology), phylum of relatively simple bilaterian, Segmentation (biology), unsegmented, soft-bodied invertebrates. Unlike other bilaterians, they are acoelomates (having no coelom, body cavity), and have no specialized circulatory system, circulatory and respiratory system, respiratory organ (anatomy), organs, which restricts them to having flattened shapes that allow oxygen and nutrients to pass through their bodies by diffusion. The digestive cavity has only one opening for both ingestion (intake of nutrients) and egestion (removal of undigested wastes); as a result, the food cannot be processed continuously. In traditional medicinal texts, Platyhelminthes are divided into Turbellaria, which are mostly non-parasitic animals such as planarians, and three entirely p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monogenea
Monogeneans are a group of ectoparasitic flatworms commonly found on the skin, gills, or fins of fish. They have a direct lifecycle and do not require an intermediate host. Adults are hermaphrodites, meaning they have both male and female reproductive structures.L.A. Tubbsa et al. (2005). "Effects of temperature on fecundity in vitro, egg hatching and reproductive development of ''Benedenia seriolae'' and ''Zeuxapta seriolae'' (Monogenea) parasitic on yellowtail kingfish Seriola lalandi". ''International Journal for Parasitology''(35), 315–327. Some monogeneans are oviparous (egg-laying) and some are viviparous (live-bearing). Oviparous varieties release eggs into the water. Viviparous varieties release larvae, which immediately attach to another host. The genus ''Gyrodactylus'' is an example of a viviparous variety, while the genus ''Dactylogyrus'' is an example of an oviparous variety. Signs and symptoms Freshwater fish that become infected with this parasite become let ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal
Animals are multicellular, eukaryotic organisms in the Kingdom (biology), biological kingdom Animalia. With few exceptions, animals Heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, are Motility, able to move, can Sexual reproduction, reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of Cell (biology), cells, the blastula, during Embryogenesis, embryonic development. Over 1.5 million Extant taxon, living animal species have been Species description, described—of which around 1 million are Insecta, insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have Ecology, complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a Symmetry in biology#Bilate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carangidae
The Carangidae are a family of ray-finned fish which includes the jacks, pompanos, jack mackerels, runners, and scads. It is the largest of the six families included within the order Carangiformes. Some authorities classify it as the only family within that order but molecular and anatomical studies indicate that there is a close relationship between this family and the five former Perciform families which make up the Carangiformes. They are marine fishes found in the Atlantic, Indian and Pacific Oceans. Most species are fast-swimming predatory fishes that hunt in the waters above reefs and in the open sea; some dig in the sea floor for invertebrates. The largest fish in the family, the greater amberjack, ''Seriola dumerili'', grows up to 2 m in length; most fish in the family reach a maximum length of 25–100 cm. The family contains many important commercial and game fish, notably the Pacific jack mackerel, ''Trachurus symmetricus'', and the other jack mackerels in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
