Redescription of two cestodes (Eucestoda: Proteocephalidea) parasitic in Phractocephalus hemioliopterus (Siluriformes) from the Amazon and erection of Scholzia gen. n.

Scholzia emarginata (Diesing, 1850) comb. nov. [synonyms: Tetrabothrium emarginatum Diesing, 1850; Nomimoscolex emarginatus (Diesing, 1850) Rego et al., 1999; Myzophorus pirarara Woodland, 1935; Nomimoscolex pirarara (Woodland, 1935); Proteocephalus pirarara (Woodland, 1935) de Chambrier & Vauch...

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Publicado: 2005
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Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0035418X_v112_n3_p735_DeChambrier
http://hdl.handle.net/20.500.12110/paper_0035418X_v112_n3_p735_DeChambrier
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spelling paper:paper_0035418X_v112_n3_p735_DeChambrier2023-06-08T15:01:12Z Redescription of two cestodes (Eucestoda: Proteocephalidea) parasitic in Phractocephalus hemioliopterus (Siluriformes) from the Amazon and erection of Scholzia gen. n. Amazon Eucestoda Microtriches Myzophorus pirarara Myzophorus woodlandi Phractocephalus hemioliopterus Proteocephalidea Proteocephalus hemioliopteri Scholzia gen. n. Tetrabothrium emarginatum Cestoda Eucestoda Nomimoscolex Phractocephalus hemioliopterus Proteocephalidae Proteocephalidea Proteocephalus hemioliopteri Proteocephalus pirarara Siluriformes Vitellaria Scholzia emarginata (Diesing, 1850) comb. nov. [synonyms: Tetrabothrium emarginatum Diesing, 1850; Nomimoscolex emarginatus (Diesing, 1850) Rego et al., 1999; Myzophorus pirarara Woodland, 1935; Nomimoscolex pirarara (Woodland, 1935); Proteocephalus pirarara (Woodland, 1935) de Chambrier & Vaucher, 1997) is redescribed on the basis of the type series of M. pirarara and newly-collected material from the siluriform fish Phractocephalus hemioliopterus in the Amazon River, Brazil. The new monotypic genus Scholzia gen. n. differs from the remaining genera of the subfamily Proteocephalidae by (1) the morphology of the scolex, (2) strobilar features such as the presence of four posterior lobes forming a velum, (3) the ovary and the vitellaria medullary with cortical projections into the velum, and (4) the vitelline follicles posteriorly converging medially at the ovarian level. Proteocephalus hemioliopteri de Chambrier & Vaucher, 1997 [synonyms: Myzophorus woodlandi Rego, 1984; Nomimoscolex woodlandi (Rego, 1984) Rego & Pavanelli, 1992] ) is redescribed on the basis of the type series of M. woodlandi and newly-collected material from the same host and locality. The morphology and distribution of microtriches of some areas of the body surface of both species are studied and compared. Three types of microtriches were observed in S. emarginata and 2 types of microtriches in P. hemioliopteri. The distribution of microtriches analysed was not useful to discriminate genera but it may be useful as a supplementary character to distinguish species. 2005 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0035418X_v112_n3_p735_DeChambrier http://hdl.handle.net/20.500.12110/paper_0035418X_v112_n3_p735_DeChambrier
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Amazon
Eucestoda
Microtriches
Myzophorus pirarara
Myzophorus woodlandi
Phractocephalus hemioliopterus
Proteocephalidea
Proteocephalus hemioliopteri
Scholzia gen. n.
Tetrabothrium emarginatum
Cestoda
Eucestoda
Nomimoscolex
Phractocephalus hemioliopterus
Proteocephalidae
Proteocephalidea
Proteocephalus hemioliopteri
Proteocephalus pirarara
Siluriformes
Vitellaria
spellingShingle Amazon
Eucestoda
Microtriches
Myzophorus pirarara
Myzophorus woodlandi
Phractocephalus hemioliopterus
Proteocephalidea
Proteocephalus hemioliopteri
Scholzia gen. n.
Tetrabothrium emarginatum
Cestoda
Eucestoda
Nomimoscolex
Phractocephalus hemioliopterus
Proteocephalidae
Proteocephalidea
Proteocephalus hemioliopteri
Proteocephalus pirarara
Siluriformes
Vitellaria
Redescription of two cestodes (Eucestoda: Proteocephalidea) parasitic in Phractocephalus hemioliopterus (Siluriformes) from the Amazon and erection of Scholzia gen. n.
topic_facet Amazon
Eucestoda
Microtriches
Myzophorus pirarara
Myzophorus woodlandi
Phractocephalus hemioliopterus
Proteocephalidea
Proteocephalus hemioliopteri
Scholzia gen. n.
Tetrabothrium emarginatum
Cestoda
Eucestoda
Nomimoscolex
Phractocephalus hemioliopterus
Proteocephalidae
Proteocephalidea
Proteocephalus hemioliopteri
Proteocephalus pirarara
Siluriformes
Vitellaria
description Scholzia emarginata (Diesing, 1850) comb. nov. [synonyms: Tetrabothrium emarginatum Diesing, 1850; Nomimoscolex emarginatus (Diesing, 1850) Rego et al., 1999; Myzophorus pirarara Woodland, 1935; Nomimoscolex pirarara (Woodland, 1935); Proteocephalus pirarara (Woodland, 1935) de Chambrier & Vaucher, 1997) is redescribed on the basis of the type series of M. pirarara and newly-collected material from the siluriform fish Phractocephalus hemioliopterus in the Amazon River, Brazil. The new monotypic genus Scholzia gen. n. differs from the remaining genera of the subfamily Proteocephalidae by (1) the morphology of the scolex, (2) strobilar features such as the presence of four posterior lobes forming a velum, (3) the ovary and the vitellaria medullary with cortical projections into the velum, and (4) the vitelline follicles posteriorly converging medially at the ovarian level. Proteocephalus hemioliopteri de Chambrier & Vaucher, 1997 [synonyms: Myzophorus woodlandi Rego, 1984; Nomimoscolex woodlandi (Rego, 1984) Rego & Pavanelli, 1992] ) is redescribed on the basis of the type series of M. woodlandi and newly-collected material from the same host and locality. The morphology and distribution of microtriches of some areas of the body surface of both species are studied and compared. Three types of microtriches were observed in S. emarginata and 2 types of microtriches in P. hemioliopteri. The distribution of microtriches analysed was not useful to discriminate genera but it may be useful as a supplementary character to distinguish species.
title Redescription of two cestodes (Eucestoda: Proteocephalidea) parasitic in Phractocephalus hemioliopterus (Siluriformes) from the Amazon and erection of Scholzia gen. n.
title_short Redescription of two cestodes (Eucestoda: Proteocephalidea) parasitic in Phractocephalus hemioliopterus (Siluriformes) from the Amazon and erection of Scholzia gen. n.
title_full Redescription of two cestodes (Eucestoda: Proteocephalidea) parasitic in Phractocephalus hemioliopterus (Siluriformes) from the Amazon and erection of Scholzia gen. n.
title_fullStr Redescription of two cestodes (Eucestoda: Proteocephalidea) parasitic in Phractocephalus hemioliopterus (Siluriformes) from the Amazon and erection of Scholzia gen. n.
title_full_unstemmed Redescription of two cestodes (Eucestoda: Proteocephalidea) parasitic in Phractocephalus hemioliopterus (Siluriformes) from the Amazon and erection of Scholzia gen. n.
title_sort redescription of two cestodes (eucestoda: proteocephalidea) parasitic in phractocephalus hemioliopterus (siluriformes) from the amazon and erection of scholzia gen. n.
publishDate 2005
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0035418X_v112_n3_p735_DeChambrier
http://hdl.handle.net/20.500.12110/paper_0035418X_v112_n3_p735_DeChambrier
_version_ 1768544494969421824