[{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","@id":"https:\/\/wiki.edu.vn\/en\/wiki21\/polyacanthorhynchus-wikipedia\/#BlogPosting","mainEntityOfPage":"https:\/\/wiki.edu.vn\/en\/wiki21\/polyacanthorhynchus-wikipedia\/","headline":"Polyacanthorhynchus – Wikipedia","name":"Polyacanthorhynchus – Wikipedia","description":"From Wikipedia, the free encyclopedia Genus of thorny-headed worms Polyacanthorhynchidae is a family of parasitic worms from the (phylum Acanthocephala).","datePublished":"2017-05-28","dateModified":"2017-05-28","author":{"@type":"Person","@id":"https:\/\/wiki.edu.vn\/en\/wiki21\/author\/lordneo\/#Person","name":"lordneo","url":"https:\/\/wiki.edu.vn\/en\/wiki21\/author\/lordneo\/","image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/c9645c498c9701c88b89b8537773dd7c?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/c9645c498c9701c88b89b8537773dd7c?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"Enzyklop\u00e4die","logo":{"@type":"ImageObject","@id":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","url":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/en.wikipedia.org\/wiki\/Special:CentralAutoLogin\/start?type=1x1","url":"https:\/\/en.wikipedia.org\/wiki\/Special:CentralAutoLogin\/start?type=1x1","height":"1","width":"1"},"url":"https:\/\/wiki.edu.vn\/en\/wiki21\/polyacanthorhynchus-wikipedia\/","wordCount":1580,"articleBody":"From Wikipedia, the free encyclopediaGenus of thorny-headed wormsPolyacanthorhynchidae is a family of parasitic worms from the (phylum Acanthocephala). It contains a single genus Polyacanthorhynchus.Taxonomy[edit]Phylogenetic analysis has found that polyacanthocephala represents a distinct class of acanthocephalans.[1]Species[edit]There are four species in the genus Polyacanthorhynchus. [2][a]Polyacanthorhynchus caballeroi Diaz-ungria and Rodrigo, 1960The complete genome of the mitochondria has been determined.[3]P. caballeroi infect South American caimans.[4]Polyacanthorhynchus echiyensis [5]Polyacanthorhynchus kenyensis Schmidt and Canaris, 1967P. kenyensis has been found infecting three freshwater teleosts: the Blue spotted tilapia (Oreochromis leucostictus), the Redbelly tilapia (Tilapia zillii), and the Largemouth bass (Micropterus salmoidein) in Lake Naivasha, Kenya. Samples were found in the liver of Tilapia and Orechromis and free in the body cavity in Micropterus[6] It is the newestPolyacanthorhynchus macrorhynchus (Diesing, 1856)P. macrorhynchus infect South American caimans.[4]Polyacanthorhynchus nigerianus [5]Polyacanthorhynchus rhopalorhynchus (Diesing, 1851)Pirarucu collected in August 2004 from Araguaia River were found to have high prevalence values of P. rhopalorhynchus in their intestines.[7]Cystacanths of P. rhopalorhynchus also have been found in the viscera of Hoplias malabaricus from Moca Vie River, Las Palquitas, Bolivia. Cystacanths were not deeply embedded in liver tissue but in a collagenous connective tissue capsule surrounded and attached to the liver surface. Necrosis of hepatocytes and subsequentinflammatory response were observed near encapsulated P. rhopalorhynchus.[4]P. rhopalorhynchus infect South American caimans. Cyscanaths had: The number of proboscis hook rows was 16\u201318 posteriorly gradually decreasing in size. There are 8\u201310 circles of anterior cuticular trunk spines with about 34\u201340 minute spines each. Lemnisci not pronounced.Male cystacanths were 1.985\u20132.978 mm long by 397\u2013662 wide significantly smaller than the size of adult males of 40\u201355 mm long. Females are larger with female cystacanths were 2.445\u20132.813 mm long by 430\u2013496 wide significantly smaller than the size of adult males of 50\u201370 mm long. Male cystacanth proboscis (1.430\u20131.690 mm long by 169\u2013208 wide) were smaller than female cystacanth proboscis (1.196\u20131.430 mm long by 169\u2013208 wide). Male cystacanth proboscis receptacle (0.611\u20131.105 mm long by 130\u2013195 wide) were also smaller than the female cystacanth proboscis receptacle (780\u2013845 long by 156\u2013195 wide).[4]Polyacanthorhynchus  species parasitize fish and caimans.^ A binomial authority in parentheses indicates that the species was originally described in a genus other than the present genus.References[edit]^ Garc\u0131a-Varela, M., Cummings, M. P., de Le\u00f3n, G. P. P., Gardner, S. L., & Laclette, J. P. (2002). Phylogenetic analysis based on 18S ribosomal RNA gene sequences supports the existence of class Polyacanthocephala (Acanthocephala). Molecular Phylogenetics and Evolution, 23(2), 288-292.^ “ITIS Standard Report Page: Polyacanthorhynchus”. www.itis.gov. Retrieved 2020-08-20.^ “Polyacanthorhynchus caballeroi mitochondrion, complete genome”. Zoologica Scripta. 2016-04-12 \u2013 via ncbi.nlm.nih.gov.^ a b c d OMAR M. AMIN, RICHARD A. HECKMANN,S VICTOR INCHAUSTY, AND RENE VASQUEZ. Immature Polyacanthorhynchus rhopalorhynchus (Acanthocephala: Polyacanthorhynchidae) in Venton, Hoplias malabaricus (Pisces) from Moca Vie River, Bolivia, with Notes on its Apical Organ and Histopathology. J. Helminthol. Soc. Wash. 63(1), 1996, pp. 115\u2013119^ a b Echi, P. C., Suresh, K., Sanil, G., Iyaji, F. O., Nwani, C. D., & Ejere, V. C. (2015). Mitochondrial DNA resolution of two new sequences Polyacanthorhynchus echiyensis n. sp. and Polyacanthorhynchus nigerianus n. sp.(Polyacanthocephala: Acanthocephala) in a paratenic host from a tropical River. Environment Conservation Journal, 16(1&2), 13\u201317.url=https:\/\/environcj.in\/wp-content\/uploads\/issues\/2015\/12\/13-17.pdf^ Description of morphology available at: Amin, O. M., & Dezfuli, B. S. (1995). Taxonomic notes on Polyacanthorhynchus kenyensis (Acanthocephala: Polyacanthorhynchidae) from Lake Naivasha, Kenya. The Journal of parasitology, 76-79. Url=https:\/\/www.researchgate.net\/profile\/Omar_Amin\/publication\/15322210_Taxonomic_Notes_on_Polyacanthorhynchus_kenyensis_Acanthocephala_Polyacanthorhynchidae_from_Lake_Naivasha_Kenya\/links\/0046353b6ebbf25b21000000.pdf^ Dos Santos, Sonia; Ceccarelli, Paulo; Luque, Jose (July\u2013September 2008). “Helminth parasites of pirarucu, Arapaima gigas (Schinz, 1822) (Osteoglossiformes: Arapaimidae) from Araguaia River, State of Mato Grosso, Brazil”. 17 (3): 171\u2013173.   "},{"@context":"http:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"https:\/\/wiki.edu.vn\/en\/wiki21\/#breadcrumbitem","name":"Enzyklop\u00e4die"}},{"@type":"ListItem","position":2,"item":{"@id":"https:\/\/wiki.edu.vn\/en\/wiki21\/polyacanthorhynchus-wikipedia\/#breadcrumbitem","name":"Polyacanthorhynchus – Wikipedia"}}]}]