Centers for Disease Control/Division of Parasitic Diseases and Malaria
EOL staff
Life cycle of acanthocephalans Moniliformis moniliformis and Macracanthorhynchus hirudinaceus Eggs are shed in the feces of the definitive hosts (1), which are usually rats in the case of M. moniliformis and swine for M. hirudinaceous, although carnivores and primates, including humans, may serve as accidental hosts. The eggs contain a fully-developed acanthor when shed in feces. The eggs are ingested by an insect intermediate host (2) (usually scarabaeoid or hydrophilid beetles for M. hirudinaceus and beetles or cockroaches for M. moniliformis). Within the hemocoelom of the insect, the acanthor (2a) molts into a second larval stage, called an acanthella (2b). After 6-12 weeks, the worm reaches the infective stage called a cystacanth (2c). The definitive host becomes infected upon ingestion of intermediate hosts containing infective cystacanths (3). In the definitive host, liberated juveniles attach to the wall of the small intestine, where they mature (4) and mate in about 8-12 weeks. In humans (5), the worms seldom mature, or mature but will rarely produce eggs.From Centers for Disease Control Parasites and Health website
Ana Paula N. Gomes, Omar M. Amin, Natalie Olifiers, Rita de Cassia Bianchi, Joyce G. R. Souza, Helene S. Barbosa & Arnaldo Maldonado Jr.
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Summary[edit] Description: English: Proboscis of Pachysentis lenti. Date: 2019. Source: https://link.springer.com/article/10.2478/s11686-019-00080-6. Author: Ana Paula N. Gomes, Omar M. Amin, Natalie Olifiers, Rita de Cassia Bianchi, Joyce G. R. Souza, Helene S. Barbosa & Arnaldo Maldonado Jr.
Fonseca, Michelle Cristie Gonçalves da, Knoff, Marcelo, Felizardo, Nilza Nunes, Torres, Eduardo José Lopes, Di Azevedo, Maria Isabel Nogueira, Gomes, Delir Corrêa, Clemente, Sérgio Carmona de São, & Iñiguez, Alena Mayo.
Wikimedia Commons
Summary[edit] Description: English: Male juvenile Corynosoma cetaceum with a detail of the proboscis, neck, and trunk spines. Bar on the left is 1mm and the bar on the right is 0.5mm. Date: 13 June 2019. Source: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612019005008108&lng=en&nrm=iso&tlng=en. Author: Fonseca, Michelle Cristie Gonçalves da, Knoff, Marcelo, Felizardo, Nilza Nunes, Torres, Eduardo José Lopes, Di Azevedo, Maria Isabel Nogueira, Gomes, Delir Corrêa, Clemente, Sérgio Carmona de São, & Iñiguez, Alena Mayo.
Summary[edit] Description: English: SEM image of specimens of Rhadinorhynchus oligospinosus Amin & Heckman, 2017 from Scomber japonicus and Trachurus murphyi from off the Pacific coast of Peru. (A) A profile of the anterior part of a male specimen showing the neck and proboscis curvature and the distribution of trunk spines. Date: 22 May 2017, 23:43:53. Source: (2017). "Rhadinorhynchus oligospinosus n. sp. (Acanthocephala, Rhadinorhynchidae) from mackerels in the Pacific Ocean off Peru and related rhadinorhynchids in the Pacific, with notes on metal analysis". Parasite 24: 19. DOI:10.1051/parasite/2017022. ISSN1776-1042. Author: Omar M. Amin and Richard A. Heckmann.
Summary[edit] Description: English: An adult of Moniliformis moniliformis (Acanthocephala: Archiacanthocephala: Moniliformida). Date:. Source: Division of Parasitic Diseases and Malaria (Centers for Disease Control and Prevention). Author: Division of Parasitic Diseases and Malaria team.
Summary[edit] Description: English: Acanthocephalan parasite, Profilicollis altmani from the mole crab, Emerita analoga. Date: September 2008. Source: Own work. Author: T. Goulding.
Summary[edit] Description: English: Pomphorhynchus from Bluefish (Pomatomus saltatrix). Source: http://www.fishdisease.net. Author: Fishdisease.net. Permission(Reusing this file): All pictures on the site were declared to be in the Public Domain – [1].
Summary[edit] Description: English: A photomicrograph of the acanthocephalan Corynosoma wegeneri. Source: originally uploaded to en.wikipedia.org by en:User:Anilocra. Author: Dr. Neil Campbell, University of Aberdeen, Scotland, UK.
Fonseca, Michelle Cristie Gonçalves da, Knoff, Marcelo, Felizardo, Nilza Nunes, Torres, Eduardo José Lopes, Di Azevedo, Maria Isabel Nogueira, Gomes, Delir Corrêa, Clemente, Sérgio Carmona de São, & Iñiguez, Alena Mayo.
Wikimedia Commons
Summary[edit] Description: English: Proboscis, neck and trunk spines of a juvenile Bolbosoma turbinella. Bar is 200 um. Date: 13 June 2019. Source: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612019005008108&lng=en&nrm=iso&tlng=en. Author: Fonseca, Michelle Cristie Gonçalves da, Knoff, Marcelo, Felizardo, Nilza Nunes, Torres, Eduardo José Lopes, Di Azevedo, Maria Isabel Nogueira, Gomes, Delir Corrêa, Clemente, Sérgio Carmona de São, & Iñiguez, Alena Mayo.
Amin, Omar M.; Heckmann, Richard A.; Osama, Mohammed; Evans, R. Paul
Wikimedia Commons
Summary[edit] Description: English: Views of the proboscis of Moniliformis saudi. Date: 1 January 2016. Source: https://folia.paru.cas.cz/pdfs/fol/2016/01/14.pdf. Author: Amin, Omar M.; Heckmann, Richard A.; Osama, Mohammed; Evans, R. Paul. According to wikicommons, the journal Folia Parasitologica switched to open access under a CC-BY 4.0 license as of January 1, 2015. Licensing[edit] : This file is licensed under the Creative CommonsAttribution 4.0 International license. :. You are free: to share – to copy, distribute and transmit the work to remix – to adapt the work Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. https://creativecommons.org/licenses/by/4.0 CC BY 4.0 Creative Commons Attribution 4.0 truetrue.
Summary[edit] Description: English: An adult Macracanthorhynchus hirudinaceus (Acanthocephala: Archiacanthocephala: Oligacanthorhynchida). Date:. Source: Division of Parasitic Diseases and Malaria (Centers for Disease Control and Prevention). Author: Division of Parasitic Diseases and Malaria team.
Summary[edit] Description: English: Life cycle of Macracanthorhynchus hirudinaceus (Acanthocephala: Archiacanthocephala: Oligacanthorhynchida). Date:. Source: Division of Parasitic Diseases and Malaria (Centers for Disease Control and Prevention). Author: Division of Parasitic Diseases and Malaria team.
Fonseca, Michelle Cristie Gonçalves da, Knoff, Marcelo, Felizardo, Nilza Nunes, Torres, Eduardo José Lopes, Di Azevedo, Maria Isabel Nogueira, Gomes, Delir Corrêa, Clemente, Sérgio Carmona de São, & Iñiguez, Alena Mayo.
Wikimedia Commons
Summary[edit] Description: English: A juvenile female Corynosoma australe with a detail of the proboscis. Bar on the left is 1 mm and the bar on the right is 0.25 mm. Date: 13 June 2019. Source: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612019005008108&lng=en&nrm=iso&tlng=en. Author: Fonseca, Michelle Cristie Gonçalves da, Knoff, Marcelo, Felizardo, Nilza Nunes, Torres, Eduardo José Lopes, Di Azevedo, Maria Isabel Nogueira, Gomes, Delir Corrêa, Clemente, Sérgio Carmona de São, & Iñiguez, Alena Mayo.
Summary[edit] Description: English: Proboscis of an adult Moniliformis moniliformis (Acanthocephala: Archiacanthocephala: Moniliformida). Date:. Source: Division of Parasitic Diseases and Malaria (Centers for Disease Control and Prevention). Author: Division of Parasitic Diseases and Malaria team.
Violante-González J, Monks S, Quiterio-Rendon G, García-Ibáñez S, Larumbe-Morán E, Rojas-Herrera AA (2016) Life on the beach for a sand crab (Emerita rathbunae) (Decapoda, Hippidae): parasite-induced mortality of females in populations of the Pacific sand crab caused by Microphallus nicolli (Microphallidae). Zoosystematics and Evolution 92(2): 153-161. https://doi.org/10.3897/zse.92.8256
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Figure 1; Helminth parasites of Emerita rathbunae. A Microphallus nicolli; B Everted proboscis of an excysted specimen of Profilicollis sp.; C Cestode larva; D Proleptus sp., inset (*) = anterior end of worm. Scale bars: A = 500 µm; B = 200 µm; C = 100 µm; D = 100 µm.
Summary[edit] Description: English: Pomphorhynchus from Bluefish (Pomatomus saltatrix). Source: http://www.fishdisease.net. Author: Fishdisease.net. Permission(Reusing this file): All pictures on the site were declared to be in the Public Domain – [1].
Summary[edit] Description: English: Photomicrograph of Macracanthorhynchus hirudinaceus egg (Acanthocephala: Archiacanthocephala: Oligacanthorhynchida). Date:. Source: Division of Parasitic Diseases and Malaria (Centers for Disease Control and Prevention). Author: Division of Parasitic Diseases and Malaria team.
Summary[edit] Description: English: Photomicrograph of Moniliformis moniliformis egg (Acanthocephala: Archiacanthocephala: Moniliformida). Date:. Source: Division of Parasitic Diseases and Malaria (Centers for Disease Control and Prevention). Author: Division of Parasitic Diseases and Malaria team.
