Galaxitaenia toloi n. gen., n. sp. (Eucestoda: Pseudophyllidea) from Galaxias platei (Pisces: Osmeriformes, Galaxiidae), in the Patagonian region of Argentina

Galaxitaenia n. gen. (Eucestoda: Pseudophyllidea) is proposed to accommodate Galaxitaenia toloi n. gen., n. sp. from Galaxias platei, a freshwater fish inhabiting Andean lakes in Argentine Patagonia. Galaxitaenia belongs to the Triaenophoridae because it possesses a marginal genital pore, a ventral...

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Detalles Bibliográficos
Autor principal: Semenas, Liliana Graciela
Publicado: 2005
Materias:
parasite
anatomy
Argentina
article
egg
Eucestoda
fish
Galaxias platei
Galaxitaenia toloi
helminth
nonhuman
ovary
scolex
South America
vagina
vitelline membrane
Animals
Cestoda
Cestode Infections
Fish Diseases
Fresh Water
Microscopy, Electron, Scanning
Osmeriformes
Prevalence
Galaxiidae
Pisces
Pseudophyllidea
Triaenophoridae
Vermes
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00223395_v91_n4_p900_GilDePertierra
http://hdl.handle.net/20.500.12110/paper_00223395_v91_n4_p900_GilDePertierra
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00223395_v91_n4_p900_GilDePertierra
record_format dspace
spelling paper:paper_00223395_v91_n4_p900_GilDePertierra2023-06-08T14:49:55Z Galaxitaenia toloi n. gen., n. sp. (Eucestoda: Pseudophyllidea) from Galaxias platei (Pisces: Osmeriformes, Galaxiidae), in the Patagonian region of Argentina Semenas, Liliana Graciela parasite anatomy Argentina article egg Eucestoda fish Galaxias platei Galaxitaenia toloi helminth nonhuman ovary scolex South America vagina vitelline membrane Animals Argentina Cestoda Cestode Infections Fish Diseases Fresh Water Microscopy, Electron, Scanning Osmeriformes Prevalence Eucestoda Galaxias platei Galaxiidae Osmeriformes Pisces Pseudophyllidea Triaenophoridae Vermes Galaxitaenia n. gen. (Eucestoda: Pseudophyllidea) is proposed to accommodate Galaxitaenia toloi n. gen., n. sp. from Galaxias platei, a freshwater fish inhabiting Andean lakes in Argentine Patagonia. Galaxitaenia belongs to the Triaenophoridae because it possesses a marginal genital pore, a ventral uterine pore, and a follicular vitelline gland. The new genus can be distinguished from other triaenophorids by the following combination of characters: a scolex with a prominent rectangular apical disc without hooks, grooves, or indentations; neck present; segments wider than long to quadrangular; testes in 2 lateral fields, often connected anteriorly; cirrus unarmed; an ovary situated posteriorly; a vagina posterior to the cirrus sac; vitelline follicles medullary, in 2 ventral fields forming 2 wings interrupted medially; a uterus saccate to branched; and eggs without operculum. The types, distribution, and density of microtriches were analyzed on the surface of the tegument of scolex, neck, and immature segments. The presence of tumuli were observed on the apical disc of the scolex. Galaxitaenia toloi n. sp. is the first triaenophorid species recorded in a South American freshwater fish and the fourth helminth parasitizing the intestine of G. platei. © American Society of Parasitologists 2005. Fil:Semenas, L.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2005 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00223395_v91_n4_p900_GilDePertierra http://hdl.handle.net/20.500.12110/paper_00223395_v91_n4_p900_GilDePertierra
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic parasite
anatomy
Argentina
article
egg
Eucestoda
fish
Galaxias platei
Galaxitaenia toloi
helminth
nonhuman
ovary
scolex
South America
vagina
vitelline membrane
Animals
Argentina
Cestoda
Cestode Infections
Fish Diseases
Fresh Water
Microscopy, Electron, Scanning
Osmeriformes
Prevalence
Eucestoda
Galaxias platei
Galaxiidae
Osmeriformes
Pisces
Pseudophyllidea
Triaenophoridae
Vermes
spellingShingle parasite
anatomy
Argentina
article
egg
Eucestoda
fish
Galaxias platei
Galaxitaenia toloi
helminth
nonhuman
ovary
scolex
South America
vagina
vitelline membrane
Animals
Argentina
Cestoda
Cestode Infections
Fish Diseases
Fresh Water
Microscopy, Electron, Scanning
Osmeriformes
Prevalence
Eucestoda
Galaxias platei
Galaxiidae
Osmeriformes
Pisces
Pseudophyllidea
Triaenophoridae
Vermes
Semenas, Liliana Graciela
Galaxitaenia toloi n. gen., n. sp. (Eucestoda: Pseudophyllidea) from Galaxias platei (Pisces: Osmeriformes, Galaxiidae), in the Patagonian region of Argentina
topic_facet parasite
anatomy
Argentina
article
egg
Eucestoda
fish
Galaxias platei
Galaxitaenia toloi
helminth
nonhuman
ovary
scolex
South America
vagina
vitelline membrane
Animals
Argentina
Cestoda
Cestode Infections
Fish Diseases
Fresh Water
Microscopy, Electron, Scanning
Osmeriformes
Prevalence
Eucestoda
Galaxias platei
Galaxiidae
Osmeriformes
Pisces
Pseudophyllidea
Triaenophoridae
Vermes
description Galaxitaenia n. gen. (Eucestoda: Pseudophyllidea) is proposed to accommodate Galaxitaenia toloi n. gen., n. sp. from Galaxias platei, a freshwater fish inhabiting Andean lakes in Argentine Patagonia. Galaxitaenia belongs to the Triaenophoridae because it possesses a marginal genital pore, a ventral uterine pore, and a follicular vitelline gland. The new genus can be distinguished from other triaenophorids by the following combination of characters: a scolex with a prominent rectangular apical disc without hooks, grooves, or indentations; neck present; segments wider than long to quadrangular; testes in 2 lateral fields, often connected anteriorly; cirrus unarmed; an ovary situated posteriorly; a vagina posterior to the cirrus sac; vitelline follicles medullary, in 2 ventral fields forming 2 wings interrupted medially; a uterus saccate to branched; and eggs without operculum. The types, distribution, and density of microtriches were analyzed on the surface of the tegument of scolex, neck, and immature segments. The presence of tumuli were observed on the apical disc of the scolex. Galaxitaenia toloi n. sp. is the first triaenophorid species recorded in a South American freshwater fish and the fourth helminth parasitizing the intestine of G. platei. © American Society of Parasitologists 2005.
author Semenas, Liliana Graciela
author_facet Semenas, Liliana Graciela
author_sort Semenas, Liliana Graciela
title Galaxitaenia toloi n. gen., n. sp. (Eucestoda: Pseudophyllidea) from Galaxias platei (Pisces: Osmeriformes, Galaxiidae), in the Patagonian region of Argentina
title_short Galaxitaenia toloi n. gen., n. sp. (Eucestoda: Pseudophyllidea) from Galaxias platei (Pisces: Osmeriformes, Galaxiidae), in the Patagonian region of Argentina
title_full Galaxitaenia toloi n. gen., n. sp. (Eucestoda: Pseudophyllidea) from Galaxias platei (Pisces: Osmeriformes, Galaxiidae), in the Patagonian region of Argentina
title_fullStr Galaxitaenia toloi n. gen., n. sp. (Eucestoda: Pseudophyllidea) from Galaxias platei (Pisces: Osmeriformes, Galaxiidae), in the Patagonian region of Argentina
title_full_unstemmed Galaxitaenia toloi n. gen., n. sp. (Eucestoda: Pseudophyllidea) from Galaxias platei (Pisces: Osmeriformes, Galaxiidae), in the Patagonian region of Argentina
title_sort galaxitaenia toloi n. gen., n. sp. (eucestoda: pseudophyllidea) from galaxias platei (pisces: osmeriformes, galaxiidae), in the patagonian region of argentina
publishDate 2005
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00223395_v91_n4_p900_GilDePertierra
http://hdl.handle.net/20.500.12110/paper_00223395_v91_n4_p900_GilDePertierra
work_keys_str_mv AT semenaslilianagraciela galaxitaeniatoloingennspeucestodapseudophyllideafromgalaxiasplateipiscesosmeriformesgalaxiidaeinthepatagonianregionofargentina
_version_ 1768541692785328128

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