A new species of Pseudocrepidobothrium (cestoda: Proteocephalidea) from Pseudoplatystoma reticulatum (pisces: Siluriformes) in the paraná river basin (Argentina)

This study describes the proteocephalidean tapeworm Pseudocrepidobothrium chanaorum sp. n. (Proteocephalidae: Proteocephalinae), which was found in the intestine of Pseudoplatystoma reticulatum (Eigenmann et Eigenmann) from the Colastiné River, a tributary of the Paraná River. The new species differ...

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Autores principales:	Arredondo, N.J., Gil de Pertierra, A.A., de Chambrier, A.
Formato:	JOUR
Materias:	Microthrix pattern Morphology Proteocephalinae Pseudocrepidobothrium chanaorum South america Surubí atigrado Taxonomy Candidatus Microthrix Cestoda Pisces Proteocephalidae Proteocephalidea Pseudoplatystoma Siluriformes animal Argentina catfish cestode classification Fish Diseases parasitology river species difference ultrastructure Animals Catfishes Rivers Species Specificity
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00155683_v61_n5_p462_Arredondo
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_00155683_v61_n5_p462_Arredondo
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spelling	todo:paper_00155683_v61_n5_p462_Arredondo2023-10-03T14:13:41Z A new species of Pseudocrepidobothrium (cestoda: Proteocephalidea) from Pseudoplatystoma reticulatum (pisces: Siluriformes) in the paraná river basin (Argentina) Arredondo, N.J. Gil de Pertierra, A.A. de Chambrier, A. Microthrix pattern Morphology Proteocephalinae Pseudocrepidobothrium chanaorum South america Surubí atigrado Taxonomy Candidatus Microthrix Cestoda Pisces Proteocephalidae Proteocephalidea Proteocephalinae Pseudoplatystoma Siluriformes animal Argentina catfish cestode classification Fish Diseases parasitology river species difference ultrastructure Animals Argentina Catfishes Cestoda Fish Diseases Rivers Species Specificity This study describes the proteocephalidean tapeworm Pseudocrepidobothrium chanaorum sp. n. (Proteocephalidae: Proteocephalinae), which was found in the intestine of Pseudoplatystoma reticulatum (Eigenmann et Eigenmann) from the Colastiné River, a tributary of the Paraná River. The new species differs from the two other species of the genus, P. eirasi (Rego et de Chambrier, 1995) and P. ludovici Ruedi et de Chambrier, 2012, parasites of Phractocephalus hemioliopterus (Bloch et Schneider) from the Amazon River in Brazil, in having fewer proglottides (4-8 without ventral appendages vs 7-12 with ventral appendages and 20-36 without ventral appendages, respectively), a smaller scolex (350-450 μm wide vs 495-990 μm and 515-1 020 μm wide, respectively), in the total number of testes (21-25 vs 21-51 and 37-79, respectively), a cirrus-sac usually directed anteriorly if the vagina is posterior to the cirrus-sac vs transversely situated in the known species. The study of the tegumental surface of Pseudocrepidobothrium spp. revealed the presence of four types of microtriches: papilliform, acicular and capilliform filitriches, and gladiate spinitriches. The three species have a similar microthrix pattern, with minor differences on the immature proglottis surface. Pseudocrepidobothrium chanaorum sp. n. is the ninth proteocephalid reported from P. reticulatum. © Institute of Parasitology, Biology Centre ASCR. 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_00155683_v61_n5_p462_Arredondo
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Microthrix pattern Morphology Proteocephalinae Pseudocrepidobothrium chanaorum South america Surubí atigrado Taxonomy Candidatus Microthrix Cestoda Pisces Proteocephalidae Proteocephalidea Proteocephalinae Pseudoplatystoma Siluriformes animal Argentina catfish cestode classification Fish Diseases parasitology river species difference ultrastructure Animals Argentina Catfishes Cestoda Fish Diseases Rivers Species Specificity
spellingShingle	Microthrix pattern Morphology Proteocephalinae Pseudocrepidobothrium chanaorum South america Surubí atigrado Taxonomy Candidatus Microthrix Cestoda Pisces Proteocephalidae Proteocephalidea Proteocephalinae Pseudoplatystoma Siluriformes animal Argentina catfish cestode classification Fish Diseases parasitology river species difference ultrastructure Animals Argentina Catfishes Cestoda Fish Diseases Rivers Species Specificity Arredondo, N.J. Gil de Pertierra, A.A. de Chambrier, A. A new species of Pseudocrepidobothrium (cestoda: Proteocephalidea) from Pseudoplatystoma reticulatum (pisces: Siluriformes) in the paraná river basin (Argentina)
topic_facet	Microthrix pattern Morphology Proteocephalinae Pseudocrepidobothrium chanaorum South america Surubí atigrado Taxonomy Candidatus Microthrix Cestoda Pisces Proteocephalidae Proteocephalidea Proteocephalinae Pseudoplatystoma Siluriformes animal Argentina catfish cestode classification Fish Diseases parasitology river species difference ultrastructure Animals Argentina Catfishes Cestoda Fish Diseases Rivers Species Specificity
description	This study describes the proteocephalidean tapeworm Pseudocrepidobothrium chanaorum sp. n. (Proteocephalidae: Proteocephalinae), which was found in the intestine of Pseudoplatystoma reticulatum (Eigenmann et Eigenmann) from the Colastiné River, a tributary of the Paraná River. The new species differs from the two other species of the genus, P. eirasi (Rego et de Chambrier, 1995) and P. ludovici Ruedi et de Chambrier, 2012, parasites of Phractocephalus hemioliopterus (Bloch et Schneider) from the Amazon River in Brazil, in having fewer proglottides (4-8 without ventral appendages vs 7-12 with ventral appendages and 20-36 without ventral appendages, respectively), a smaller scolex (350-450 μm wide vs 495-990 μm and 515-1 020 μm wide, respectively), in the total number of testes (21-25 vs 21-51 and 37-79, respectively), a cirrus-sac usually directed anteriorly if the vagina is posterior to the cirrus-sac vs transversely situated in the known species. The study of the tegumental surface of Pseudocrepidobothrium spp. revealed the presence of four types of microtriches: papilliform, acicular and capilliform filitriches, and gladiate spinitriches. The three species have a similar microthrix pattern, with minor differences on the immature proglottis surface. Pseudocrepidobothrium chanaorum sp. n. is the ninth proteocephalid reported from P. reticulatum. © Institute of Parasitology, Biology Centre ASCR.
format	JOUR
author	Arredondo, N.J. Gil de Pertierra, A.A. de Chambrier, A.
author_facet	Arredondo, N.J. Gil de Pertierra, A.A. de Chambrier, A.
author_sort	Arredondo, N.J.
title	A new species of Pseudocrepidobothrium (cestoda: Proteocephalidea) from Pseudoplatystoma reticulatum (pisces: Siluriformes) in the paraná river basin (Argentina)
title_short	A new species of Pseudocrepidobothrium (cestoda: Proteocephalidea) from Pseudoplatystoma reticulatum (pisces: Siluriformes) in the paraná river basin (Argentina)
title_full	A new species of Pseudocrepidobothrium (cestoda: Proteocephalidea) from Pseudoplatystoma reticulatum (pisces: Siluriformes) in the paraná river basin (Argentina)
title_fullStr	A new species of Pseudocrepidobothrium (cestoda: Proteocephalidea) from Pseudoplatystoma reticulatum (pisces: Siluriformes) in the paraná river basin (Argentina)
title_full_unstemmed	A new species of Pseudocrepidobothrium (cestoda: Proteocephalidea) from Pseudoplatystoma reticulatum (pisces: Siluriformes) in the paraná river basin (Argentina)
title_sort	new species of pseudocrepidobothrium (cestoda: proteocephalidea) from pseudoplatystoma reticulatum (pisces: siluriformes) in the paraná river basin (argentina)
url	http://hdl.handle.net/20.500.12110/paper_00155683_v61_n5_p462_Arredondo
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A new species of Pseudocrepidobothrium (cestoda: Proteocephalidea) from Pseudoplatystoma reticulatum (pisces: Siluriformes) in the paraná river basin (Argentina)

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