Two new species of Parspina Pearse, 1920 (Digenea: Cryptogonimidae) from freshwater fishes (Gymnotiformes) of the Paraná River basin in Argentina
Two new species of the cryptogonimid genus Parspina Pearse, 1920 are described from gymnotiform fishes of the Paraná River basin, P. carapo n. sp. from the banded knifefish Gymnotus carapo Linnaeus and P. virescens n. sp. from the glass knifefish Eigenmannia virescens (Valenciennes). Parspinacarapo...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_01655752_v80_n1_p67_deNunez |
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todo:paper_01655752_v80_n1_p67_deNunez2023-10-03T15:03:02Z Two new species of Parspina Pearse, 1920 (Digenea: Cryptogonimidae) from freshwater fishes (Gymnotiformes) of the Paraná River basin in Argentina de Núñez, M.C.O. Arredondo, N.J. de Pertierra, A.A.G. fresh water animal Argentina article classification female Gymnotiformes histology intestine isolation and purification male ovary parasitology river scanning electron microscopy testis trematode ultrastructure Animals Argentina Female Fresh Water Gymnotiformes Intestines Male Microscopy, Electron, Scanning Ovary Rivers Testis Trematoda Bagre Cryptogonimidae Eigenmannia virescens Gymnotiformes Gymnotus carapo Pisces Vermes Two new species of the cryptogonimid genus Parspina Pearse, 1920 are described from gymnotiform fishes of the Paraná River basin, P. carapo n. sp. from the banded knifefish Gymnotus carapo Linnaeus and P. virescens n. sp. from the glass knifefish Eigenmannia virescens (Valenciennes). Parspinacarapo differs from P. virescens in the number of oral spines (32-39 vs 30-33) and their length (28-47 vs 16-28 μm), the distribution of tegumental spines and their anchorage, the types of sensory papillae on the body surface (three vs two types), the extent of body length posterior to the caeca (5 vs 13% of the total body length), the dimensions of the pars prostatica (52 × 34 vs 24 × 10 μm), and in the absence of a gonotyl (vs presence). Both P. carapo and P. virescens differ from P. bagre Pearse, 1920 and P. argentinensis (Szidat, 1954) in the number of oral spines (20-21 and 21-28 in the latter pair) and their length (28-32 and 35-60 μm), and in total body length. Additionally, the two new species differ from P. argentinensis in the arrangement of the vitelline follicles (one continuous band vs two groups on each side of the body) and in having a smaller pars prostatica (149 × 49 μm in the latter). Parspina carapo is the fifth intestinal helminth found in G. carapo, and P. virescens is the first found in E. virescens. © 2011 Springer Science+Business Media B.V. Fil:Arredondo, N.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01655752_v80_n1_p67_deNunez |
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Universidad de Buenos Aires |
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I-28 |
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R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
fresh water animal Argentina article classification female Gymnotiformes histology intestine isolation and purification male ovary parasitology river scanning electron microscopy testis trematode ultrastructure Animals Argentina Female Fresh Water Gymnotiformes Intestines Male Microscopy, Electron, Scanning Ovary Rivers Testis Trematoda Bagre Cryptogonimidae Eigenmannia virescens Gymnotiformes Gymnotus carapo Pisces Vermes |
| spellingShingle |
fresh water animal Argentina article classification female Gymnotiformes histology intestine isolation and purification male ovary parasitology river scanning electron microscopy testis trematode ultrastructure Animals Argentina Female Fresh Water Gymnotiformes Intestines Male Microscopy, Electron, Scanning Ovary Rivers Testis Trematoda Bagre Cryptogonimidae Eigenmannia virescens Gymnotiformes Gymnotus carapo Pisces Vermes de Núñez, M.C.O. Arredondo, N.J. de Pertierra, A.A.G. Two new species of Parspina Pearse, 1920 (Digenea: Cryptogonimidae) from freshwater fishes (Gymnotiformes) of the Paraná River basin in Argentina |
| topic_facet |
fresh water animal Argentina article classification female Gymnotiformes histology intestine isolation and purification male ovary parasitology river scanning electron microscopy testis trematode ultrastructure Animals Argentina Female Fresh Water Gymnotiformes Intestines Male Microscopy, Electron, Scanning Ovary Rivers Testis Trematoda Bagre Cryptogonimidae Eigenmannia virescens Gymnotiformes Gymnotus carapo Pisces Vermes |
| description |
Two new species of the cryptogonimid genus Parspina Pearse, 1920 are described from gymnotiform fishes of the Paraná River basin, P. carapo n. sp. from the banded knifefish Gymnotus carapo Linnaeus and P. virescens n. sp. from the glass knifefish Eigenmannia virescens (Valenciennes). Parspinacarapo differs from P. virescens in the number of oral spines (32-39 vs 30-33) and their length (28-47 vs 16-28 μm), the distribution of tegumental spines and their anchorage, the types of sensory papillae on the body surface (three vs two types), the extent of body length posterior to the caeca (5 vs 13% of the total body length), the dimensions of the pars prostatica (52 × 34 vs 24 × 10 μm), and in the absence of a gonotyl (vs presence). Both P. carapo and P. virescens differ from P. bagre Pearse, 1920 and P. argentinensis (Szidat, 1954) in the number of oral spines (20-21 and 21-28 in the latter pair) and their length (28-32 and 35-60 μm), and in total body length. Additionally, the two new species differ from P. argentinensis in the arrangement of the vitelline follicles (one continuous band vs two groups on each side of the body) and in having a smaller pars prostatica (149 × 49 μm in the latter). Parspina carapo is the fifth intestinal helminth found in G. carapo, and P. virescens is the first found in E. virescens. © 2011 Springer Science+Business Media B.V. |
| format |
JOUR |
| author |
de Núñez, M.C.O. Arredondo, N.J. de Pertierra, A.A.G. |
| author_facet |
de Núñez, M.C.O. Arredondo, N.J. de Pertierra, A.A.G. |
| author_sort |
de Núñez, M.C.O. |
| title |
Two new species of Parspina Pearse, 1920 (Digenea: Cryptogonimidae) from freshwater fishes (Gymnotiformes) of the Paraná River basin in Argentina |
| title_short |
Two new species of Parspina Pearse, 1920 (Digenea: Cryptogonimidae) from freshwater fishes (Gymnotiformes) of the Paraná River basin in Argentina |
| title_full |
Two new species of Parspina Pearse, 1920 (Digenea: Cryptogonimidae) from freshwater fishes (Gymnotiformes) of the Paraná River basin in Argentina |
| title_fullStr |
Two new species of Parspina Pearse, 1920 (Digenea: Cryptogonimidae) from freshwater fishes (Gymnotiformes) of the Paraná River basin in Argentina |
| title_full_unstemmed |
Two new species of Parspina Pearse, 1920 (Digenea: Cryptogonimidae) from freshwater fishes (Gymnotiformes) of the Paraná River basin in Argentina |
| title_sort |
two new species of parspina pearse, 1920 (digenea: cryptogonimidae) from freshwater fishes (gymnotiformes) of the paraná river basin in argentina |
| url |
http://hdl.handle.net/20.500.12110/paper_01655752_v80_n1_p67_deNunez |
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