Redescription of Parspina argentinensis (Szidat, 1954) (Digenea: Cryptogonimidae) from freshwater fishes (Pimelodidae) in the basins of the Paraná and La Plata Rivers, Argentina, with comments on P. bagre Pearse, 1920

The type-specimens of Parspina argentinensis (Szidat, 1954) from Pimelodus maculatus Lacépède, and new material from Iheringichthys labrosus (Lütken), Parapimelodus valenciennis (Lütken), Pimelodella gracilis (Valenciennes), Pimelodus albicans (Valenciennes), P. argenteus Perugia and P. maculatus ca...

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Autores principales: de Núñez, M.C.O., Arredondo, N.J., Doma, I.L., de Pertierra, A.A.G.
Formato: JOUR
Materias:
animal
animal disease
article
catfish
classification
fish disease
isolation and purification
parasitology
trematode
trematodiasis
ultrastructure
Animals
Catfishes
Fish Diseases
Trematoda
Trematode Infections
Bagre
Cryptogonimidae
Iheringichthys labrosus
Parapimelodus
Pimelodella
Pimelodidae
Pimelodus albicans
Pimelodus maculatus
Pisces
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_01655752_v78_n1_p27_deNunez
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_01655752_v78_n1_p27_deNunez
record_format dspace
spelling todo:paper_01655752_v78_n1_p27_deNunez2023-10-03T15:03:02Z Redescription of Parspina argentinensis (Szidat, 1954) (Digenea: Cryptogonimidae) from freshwater fishes (Pimelodidae) in the basins of the Paraná and La Plata Rivers, Argentina, with comments on P. bagre Pearse, 1920 de Núñez, M.C.O. Arredondo, N.J. Doma, I.L. de Pertierra, A.A.G. animal animal disease article catfish classification fish disease isolation and purification parasitology trematode trematodiasis ultrastructure Animals Catfishes Fish Diseases Trematoda Trematode Infections Bagre Cryptogonimidae Iheringichthys labrosus Parapimelodus Pimelodella Pimelodidae Pimelodus albicans Pimelodus maculatus Pisces The type-specimens of Parspina argentinensis (Szidat, 1954) from Pimelodus maculatus Lacépède, and new material from Iheringichthys labrosus (Lütken), Parapimelodus valenciennis (Lütken), Pimelodella gracilis (Valenciennes), Pimelodus albicans (Valenciennes), P. argenteus Perugia and P. maculatus caught in the basins of the La Plata and Paraná Rivers, Argentina, were studied to elucidate its taxonomic status. The type-specimens of Parspina bagre Pearse, 1920 from Pimelodella metae Eigenmann in Lake Valencia, Venezuela, were also studied and new observations on its morphology recorded. The amendation of the generic diagnosis of Parspina Pearse, 1920 is proposed based on the study of both species, which revealed, among other features, the absence of a thin walled-membrane enclosing the male terminal genitalia. Parspina argentinensis is characterised by the following features: absence of a gonotyl; presence of a bipartite seminal vesicle, pars prostatica and ejaculatory duct; caeca of nearly equal length; uterus extending from the level of the ventral sucker to end of body; testes symmetrical to slightly oblique; ovary transversely elongate, compact and variable in shape; and the utilisation of a wide range of freshwater fishes as hosts. The tegumental surface of this species is covered with pectinate spines arranged quincuncially. Spines decrease in size and density from forebody to hindbody. There are two types of sensory papillae, ciliated and dome-shaped. Ciliated papillae are distributed on the surface of the oral region and on the dorsal and ventral surfaces of the body, whereas dome-shaped papillae are found on the surface of the ventral rim of the oral sucker associated with a ciliated papilla. Gland-duct openings are interspersed with the spines of the oral crown. In addition, the infection indices of P. argentinensis vary widely, not only among different hosts but also between the Paraná and La Plata River basins. Higher prevalences of P. argentinensis are recorded in the La Plata River, and Pimelodus albicans, P. maculatus and Iheringichthys labrosus are the principal final hosts in this area. © 2010 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_v78_n1_p27_deNunez
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic animal
animal disease
article
catfish
classification
fish disease
isolation and purification
parasitology
trematode
trematodiasis
ultrastructure
Animals
Catfishes
Fish Diseases
Trematoda
Trematode Infections
Bagre
Cryptogonimidae
Iheringichthys labrosus
Parapimelodus
Pimelodella
Pimelodidae
Pimelodus albicans
Pimelodus maculatus
Pisces
spellingShingle animal
animal disease
article
catfish
classification
fish disease
isolation and purification
parasitology
trematode
trematodiasis
ultrastructure
Animals
Catfishes
Fish Diseases
Trematoda
Trematode Infections
Bagre
Cryptogonimidae
Iheringichthys labrosus
Parapimelodus
Pimelodella
Pimelodidae
Pimelodus albicans
Pimelodus maculatus
Pisces
de Núñez, M.C.O.
Arredondo, N.J.
Doma, I.L.
de Pertierra, A.A.G.
Redescription of Parspina argentinensis (Szidat, 1954) (Digenea: Cryptogonimidae) from freshwater fishes (Pimelodidae) in the basins of the Paraná and La Plata Rivers, Argentina, with comments on P. bagre Pearse, 1920
topic_facet animal
animal disease
article
catfish
classification
fish disease
isolation and purification
parasitology
trematode
trematodiasis
ultrastructure
Animals
Catfishes
Fish Diseases
Trematoda
Trematode Infections
Bagre
Cryptogonimidae
Iheringichthys labrosus
Parapimelodus
Pimelodella
Pimelodidae
Pimelodus albicans
Pimelodus maculatus
Pisces
description The type-specimens of Parspina argentinensis (Szidat, 1954) from Pimelodus maculatus Lacépède, and new material from Iheringichthys labrosus (Lütken), Parapimelodus valenciennis (Lütken), Pimelodella gracilis (Valenciennes), Pimelodus albicans (Valenciennes), P. argenteus Perugia and P. maculatus caught in the basins of the La Plata and Paraná Rivers, Argentina, were studied to elucidate its taxonomic status. The type-specimens of Parspina bagre Pearse, 1920 from Pimelodella metae Eigenmann in Lake Valencia, Venezuela, were also studied and new observations on its morphology recorded. The amendation of the generic diagnosis of Parspina Pearse, 1920 is proposed based on the study of both species, which revealed, among other features, the absence of a thin walled-membrane enclosing the male terminal genitalia. Parspina argentinensis is characterised by the following features: absence of a gonotyl; presence of a bipartite seminal vesicle, pars prostatica and ejaculatory duct; caeca of nearly equal length; uterus extending from the level of the ventral sucker to end of body; testes symmetrical to slightly oblique; ovary transversely elongate, compact and variable in shape; and the utilisation of a wide range of freshwater fishes as hosts. The tegumental surface of this species is covered with pectinate spines arranged quincuncially. Spines decrease in size and density from forebody to hindbody. There are two types of sensory papillae, ciliated and dome-shaped. Ciliated papillae are distributed on the surface of the oral region and on the dorsal and ventral surfaces of the body, whereas dome-shaped papillae are found on the surface of the ventral rim of the oral sucker associated with a ciliated papilla. Gland-duct openings are interspersed with the spines of the oral crown. In addition, the infection indices of P. argentinensis vary widely, not only among different hosts but also between the Paraná and La Plata River basins. Higher prevalences of P. argentinensis are recorded in the La Plata River, and Pimelodus albicans, P. maculatus and Iheringichthys labrosus are the principal final hosts in this area. © 2010 Springer Science+Business Media B.V.
format JOUR
author de Núñez, M.C.O.
Arredondo, N.J.
Doma, I.L.
de Pertierra, A.A.G.
author_facet de Núñez, M.C.O.
Arredondo, N.J.
Doma, I.L.
de Pertierra, A.A.G.
author_sort de Núñez, M.C.O.
title Redescription of Parspina argentinensis (Szidat, 1954) (Digenea: Cryptogonimidae) from freshwater fishes (Pimelodidae) in the basins of the Paraná and La Plata Rivers, Argentina, with comments on P. bagre Pearse, 1920
title_short Redescription of Parspina argentinensis (Szidat, 1954) (Digenea: Cryptogonimidae) from freshwater fishes (Pimelodidae) in the basins of the Paraná and La Plata Rivers, Argentina, with comments on P. bagre Pearse, 1920
title_full Redescription of Parspina argentinensis (Szidat, 1954) (Digenea: Cryptogonimidae) from freshwater fishes (Pimelodidae) in the basins of the Paraná and La Plata Rivers, Argentina, with comments on P. bagre Pearse, 1920
title_fullStr Redescription of Parspina argentinensis (Szidat, 1954) (Digenea: Cryptogonimidae) from freshwater fishes (Pimelodidae) in the basins of the Paraná and La Plata Rivers, Argentina, with comments on P. bagre Pearse, 1920
title_full_unstemmed Redescription of Parspina argentinensis (Szidat, 1954) (Digenea: Cryptogonimidae) from freshwater fishes (Pimelodidae) in the basins of the Paraná and La Plata Rivers, Argentina, with comments on P. bagre Pearse, 1920
title_sort redescription of parspina argentinensis (szidat, 1954) (digenea: cryptogonimidae) from freshwater fishes (pimelodidae) in the basins of the paraná and la plata rivers, argentina, with comments on p. bagre pearse, 1920
url http://hdl.handle.net/20.500.12110/paper_01655752_v78_n1_p27_deNunez
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