Two new species of Clestobothrium (Cestoda: bothriocephalidea), parasites of Merluccius australis and M. hubbsi (Gadiformes: merlucciidae) from the patagonian shelf of argentina, with comments on Clestobothrium crassiceps (Rudolphi, 1819)
Two new species of bothriocephalidean cestodes, Clestobothrium splendidum sp. n. from Merluccius australis (Hutton) and Clestobothrium cristinae sp. n. from Merluccius hubbsi Marini from the Patagonian shelf of Argentina, are described. Clestobothrium splendidum can be typified by the following char...
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Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00155683_v58_n2_p121_dePertierra http://hdl.handle.net/20.500.12110/paper_00155683_v58_n2_p121_dePertierra |
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paper:paper_00155683_v58_n2_p121_dePertierra2023-06-08T14:38:05Z Two new species of Clestobothrium (Cestoda: bothriocephalidea), parasites of Merluccius australis and M. hubbsi (Gadiformes: merlucciidae) from the patagonian shelf of argentina, with comments on Clestobothrium crassiceps (Rudolphi, 1819) Arredondo, Nathalia J. Argentina Bothriocephalidae Clestobothrium crassiceps Clestobothrium cristinae Clestobothrium splendidum Key to species Merluccius australis Merluccius hubbsi Patagonian shelf animal animal disease Argentina article cestode classification female fish disease Gadiformes intestine isolation and purification male ovary parasitology scanning electron microscopy ultrastructure Animals Argentina Cestoda Female Fish Diseases Gadiformes Intestines Male Microscopy, Electron, Scanning Ovary Bothriocephalidae Cestoda Clestobothrium Clestobothrium crassiceps Gadiformes Merlucciidae Merluccius australis Merluccius hubbsi Merluccius merluccius Two new species of bothriocephalidean cestodes, Clestobothrium splendidum sp. n. from Merluccius australis (Hutton) and Clestobothrium cristinae sp. n. from Merluccius hubbsi Marini from the Patagonian shelf of Argentina, are described. Clestobothrium splendidum can be typified by the following characteristics: a medium-sized strobila composed of 410-528 proglottides that are much wider than long; 49-90 testes per mature proglottis, partially surrounding the ovary posteriorly; a transversely elongated genital pore situated anterior to spurious articulations; presence of a genital atrium; a globular cirrus-sac occupying 4-6% of mature proglottis width; a vagina with sphincter and three pairs of osmoregulatory canals on each side of the proglottis. Clestobothrium cristinae is characterised by its small size; 71-219 proglottides; 39-64 testes per mature proglottis, usually surrounding completely the ovary posteriorly; a rounded genital pore situated at the same level of spurious articulations; an oval cirrus-sac occupying 8-16% of mature proglottis width; and three pairs of osmoregulatory canals on each side of the proglottis. Clestobothrium cristinae shares with C. splendidum the type and distribution of microtriches, except for the central surface delimited by two lips. Additionally, type and voucher materials of Clestobothrium crassiceps (Rudolphi, 1819) from Merluccius merluccius were studied. A key to species is provided. © Institute of Parasitology, Biology Centre ASCR. Fil:Arredondo, N.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2011 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00155683_v58_n2_p121_dePertierra http://hdl.handle.net/20.500.12110/paper_00155683_v58_n2_p121_dePertierra |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
topic |
Argentina Bothriocephalidae Clestobothrium crassiceps Clestobothrium cristinae Clestobothrium splendidum Key to species Merluccius australis Merluccius hubbsi Patagonian shelf animal animal disease Argentina article cestode classification female fish disease Gadiformes intestine isolation and purification male ovary parasitology scanning electron microscopy ultrastructure Animals Argentina Cestoda Female Fish Diseases Gadiformes Intestines Male Microscopy, Electron, Scanning Ovary Bothriocephalidae Cestoda Clestobothrium Clestobothrium crassiceps Gadiformes Merlucciidae Merluccius australis Merluccius hubbsi Merluccius merluccius |
spellingShingle |
Argentina Bothriocephalidae Clestobothrium crassiceps Clestobothrium cristinae Clestobothrium splendidum Key to species Merluccius australis Merluccius hubbsi Patagonian shelf animal animal disease Argentina article cestode classification female fish disease Gadiformes intestine isolation and purification male ovary parasitology scanning electron microscopy ultrastructure Animals Argentina Cestoda Female Fish Diseases Gadiformes Intestines Male Microscopy, Electron, Scanning Ovary Bothriocephalidae Cestoda Clestobothrium Clestobothrium crassiceps Gadiformes Merlucciidae Merluccius australis Merluccius hubbsi Merluccius merluccius Arredondo, Nathalia J. Two new species of Clestobothrium (Cestoda: bothriocephalidea), parasites of Merluccius australis and M. hubbsi (Gadiformes: merlucciidae) from the patagonian shelf of argentina, with comments on Clestobothrium crassiceps (Rudolphi, 1819) |
topic_facet |
Argentina Bothriocephalidae Clestobothrium crassiceps Clestobothrium cristinae Clestobothrium splendidum Key to species Merluccius australis Merluccius hubbsi Patagonian shelf animal animal disease Argentina article cestode classification female fish disease Gadiformes intestine isolation and purification male ovary parasitology scanning electron microscopy ultrastructure Animals Argentina Cestoda Female Fish Diseases Gadiformes Intestines Male Microscopy, Electron, Scanning Ovary Bothriocephalidae Cestoda Clestobothrium Clestobothrium crassiceps Gadiformes Merlucciidae Merluccius australis Merluccius hubbsi Merluccius merluccius |
description |
Two new species of bothriocephalidean cestodes, Clestobothrium splendidum sp. n. from Merluccius australis (Hutton) and Clestobothrium cristinae sp. n. from Merluccius hubbsi Marini from the Patagonian shelf of Argentina, are described. Clestobothrium splendidum can be typified by the following characteristics: a medium-sized strobila composed of 410-528 proglottides that are much wider than long; 49-90 testes per mature proglottis, partially surrounding the ovary posteriorly; a transversely elongated genital pore situated anterior to spurious articulations; presence of a genital atrium; a globular cirrus-sac occupying 4-6% of mature proglottis width; a vagina with sphincter and three pairs of osmoregulatory canals on each side of the proglottis. Clestobothrium cristinae is characterised by its small size; 71-219 proglottides; 39-64 testes per mature proglottis, usually surrounding completely the ovary posteriorly; a rounded genital pore situated at the same level of spurious articulations; an oval cirrus-sac occupying 8-16% of mature proglottis width; and three pairs of osmoregulatory canals on each side of the proglottis. Clestobothrium cristinae shares with C. splendidum the type and distribution of microtriches, except for the central surface delimited by two lips. Additionally, type and voucher materials of Clestobothrium crassiceps (Rudolphi, 1819) from Merluccius merluccius were studied. A key to species is provided. © Institute of Parasitology, Biology Centre ASCR. |
author |
Arredondo, Nathalia J. |
author_facet |
Arredondo, Nathalia J. |
author_sort |
Arredondo, Nathalia J. |
title |
Two new species of Clestobothrium (Cestoda: bothriocephalidea), parasites of Merluccius australis and M. hubbsi (Gadiformes: merlucciidae) from the patagonian shelf of argentina, with comments on Clestobothrium crassiceps (Rudolphi, 1819) |
title_short |
Two new species of Clestobothrium (Cestoda: bothriocephalidea), parasites of Merluccius australis and M. hubbsi (Gadiformes: merlucciidae) from the patagonian shelf of argentina, with comments on Clestobothrium crassiceps (Rudolphi, 1819) |
title_full |
Two new species of Clestobothrium (Cestoda: bothriocephalidea), parasites of Merluccius australis and M. hubbsi (Gadiformes: merlucciidae) from the patagonian shelf of argentina, with comments on Clestobothrium crassiceps (Rudolphi, 1819) |
title_fullStr |
Two new species of Clestobothrium (Cestoda: bothriocephalidea), parasites of Merluccius australis and M. hubbsi (Gadiformes: merlucciidae) from the patagonian shelf of argentina, with comments on Clestobothrium crassiceps (Rudolphi, 1819) |
title_full_unstemmed |
Two new species of Clestobothrium (Cestoda: bothriocephalidea), parasites of Merluccius australis and M. hubbsi (Gadiformes: merlucciidae) from the patagonian shelf of argentina, with comments on Clestobothrium crassiceps (Rudolphi, 1819) |
title_sort |
two new species of clestobothrium (cestoda: bothriocephalidea), parasites of merluccius australis and m. hubbsi (gadiformes: merlucciidae) from the patagonian shelf of argentina, with comments on clestobothrium crassiceps (rudolphi, 1819) |
publishDate |
2011 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00155683_v58_n2_p121_dePertierra http://hdl.handle.net/20.500.12110/paper_00155683_v58_n2_p121_dePertierra |
work_keys_str_mv |
AT arredondonathaliaj twonewspeciesofclestobothriumcestodabothriocephalideaparasitesofmerlucciusaustralisandmhubbsigadiformesmerlucciidaefromthepatagonianshelfofargentinawithcommentsonclestobothriumcrassicepsrudolphi1819 |
_version_ |
1768545721509740544 |