Steganoderma szidati n. sp. (Trematoda: Zoogonidae) from Galaxias maculatus (Jenyns) and G. platei Steindachner in Patagonia, Argentina
Steganoderma szidati n. sp. is described from the intestine of two freshwater fishes, Galaxias maculatus and G. platei (Galaxiidae), from Andean lakes in Patagonia, Argentina. This freshwater zoogonid species fits in the genus Steganoderma (sensu Bray, 1987) because of the length of the caeca and th...
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Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01655752_v46_n3_p203_Viozzi http://hdl.handle.net/20.500.12110/paper_01655752_v46_n3_p203_Viozzi |
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paper:paper_01655752_v46_n3_p203_Viozzi2023-06-08T15:14:57Z Steganoderma szidati n. sp. (Trematoda: Zoogonidae) from Galaxias maculatus (Jenyns) and G. platei Steindachner in Patagonia, Argentina Ostrowski, Margarita Argentina Galaxias platei morphology new species parasitism Animals Argentina Fishes Fresh Water Intestines Trematoda Steganoderma szidati n. sp. is described from the intestine of two freshwater fishes, Galaxias maculatus and G. platei (Galaxiidae), from Andean lakes in Patagonia, Argentina. This freshwater zoogonid species fits in the genus Steganoderma (sensu Bray, 1987) because of the length of the caeca and the position of the vitelline follicles. The new species is characterised by possessing 6-13 vitelline follicles situated between the anterior margin of the ventral sucker and the posterior margin of the testis. The gonads are in the anterior hindbody and the ovary is anterior to the right testis. The cirrus has two conspicuous spines at its distal end, and the seminal vesicle always exhibits a constriction. The excretory vesicle never reaches the level of the posterior margin of the testes. Fil:Ostrowski De Núñez, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2000 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01655752_v46_n3_p203_Viozzi http://hdl.handle.net/20.500.12110/paper_01655752_v46_n3_p203_Viozzi |
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 Galaxias platei morphology new species parasitism Animals Argentina Fishes Fresh Water Intestines Trematoda |
spellingShingle |
Argentina Galaxias platei morphology new species parasitism Animals Argentina Fishes Fresh Water Intestines Trematoda Ostrowski, Margarita Steganoderma szidati n. sp. (Trematoda: Zoogonidae) from Galaxias maculatus (Jenyns) and G. platei Steindachner in Patagonia, Argentina |
topic_facet |
Argentina Galaxias platei morphology new species parasitism Animals Argentina Fishes Fresh Water Intestines Trematoda |
description |
Steganoderma szidati n. sp. is described from the intestine of two freshwater fishes, Galaxias maculatus and G. platei (Galaxiidae), from Andean lakes in Patagonia, Argentina. This freshwater zoogonid species fits in the genus Steganoderma (sensu Bray, 1987) because of the length of the caeca and the position of the vitelline follicles. The new species is characterised by possessing 6-13 vitelline follicles situated between the anterior margin of the ventral sucker and the posterior margin of the testis. The gonads are in the anterior hindbody and the ovary is anterior to the right testis. The cirrus has two conspicuous spines at its distal end, and the seminal vesicle always exhibits a constriction. The excretory vesicle never reaches the level of the posterior margin of the testes. |
author |
Ostrowski, Margarita |
author_facet |
Ostrowski, Margarita |
author_sort |
Ostrowski, Margarita |
title |
Steganoderma szidati n. sp. (Trematoda: Zoogonidae) from Galaxias maculatus (Jenyns) and G. platei Steindachner in Patagonia, Argentina |
title_short |
Steganoderma szidati n. sp. (Trematoda: Zoogonidae) from Galaxias maculatus (Jenyns) and G. platei Steindachner in Patagonia, Argentina |
title_full |
Steganoderma szidati n. sp. (Trematoda: Zoogonidae) from Galaxias maculatus (Jenyns) and G. platei Steindachner in Patagonia, Argentina |
title_fullStr |
Steganoderma szidati n. sp. (Trematoda: Zoogonidae) from Galaxias maculatus (Jenyns) and G. platei Steindachner in Patagonia, Argentina |
title_full_unstemmed |
Steganoderma szidati n. sp. (Trematoda: Zoogonidae) from Galaxias maculatus (Jenyns) and G. platei Steindachner in Patagonia, Argentina |
title_sort |
steganoderma szidati n. sp. (trematoda: zoogonidae) from galaxias maculatus (jenyns) and g. platei steindachner in patagonia, argentina |
publishDate |
2000 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01655752_v46_n3_p203_Viozzi http://hdl.handle.net/20.500.12110/paper_01655752_v46_n3_p203_Viozzi |
work_keys_str_mv |
AT ostrowskimargarita steganodermaszidatinsptrematodazoogonidaefromgalaxiasmaculatusjenynsandgplateisteindachnerinpatagoniaargentina |
_version_ |
1768542170248118272 |