Morphological description of Cyrtopleura costata (Bivalvia: Pholadidae) from southern Brazil
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Papéis Avulsos de Zoologia (Online) |
Texto Completo: | https://www.revistas.usp.br/paz/article/view/168488 |
Resumo: | The aim of the study is to describe in detail, for the first time, the internal and external anatomy of Cyrtopleura costata, which displays ellipsoid and elongated valves with beige periostracum, the anterior adductor muscle unites the valves in the pre-umbonal region, with abduction capacity in its dorsal half, sparing the ligament. Two accessory valves are identified: the mesoplax (calcified) located in the umbonal region; and the protoplax (corneus) above the anterior adductor muscle. Internally there is a pair of well-developed apophysis that supports the labial palps and the pedal muscles, and support part of the gills. The posterior half of mantle ventral edge is fused and richly muscular, working as auxiliary adductor muscle. The siphons are completely united with each other, the incurrent being larger than the excurrent. The foot is small (about ⅛ the size of the animal). The kidneys extend laterally on the dorsal surface, solid, presenting a brown/reddish color. The style sac is well developed and entirely detached from the adjacent intestine. The intestine has numerous loops and curves within the visceral mass. The fecal pellets are coin-shaped. The present study certainly may be used as comparative scenario for specimens from other regions of the species range. |
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Papéis Avulsos de Zoologia (Online) |
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Morphological description of Cyrtopleura costata (Bivalvia: Pholadidae) from southern BrazilTaxonomyBivalveMorphologyMyidaPholadoideaThe aim of the study is to describe in detail, for the first time, the internal and external anatomy of Cyrtopleura costata, which displays ellipsoid and elongated valves with beige periostracum, the anterior adductor muscle unites the valves in the pre-umbonal region, with abduction capacity in its dorsal half, sparing the ligament. Two accessory valves are identified: the mesoplax (calcified) located in the umbonal region; and the protoplax (corneus) above the anterior adductor muscle. Internally there is a pair of well-developed apophysis that supports the labial palps and the pedal muscles, and support part of the gills. The posterior half of mantle ventral edge is fused and richly muscular, working as auxiliary adductor muscle. The siphons are completely united with each other, the incurrent being larger than the excurrent. The foot is small (about ⅛ the size of the animal). The kidneys extend laterally on the dorsal surface, solid, presenting a brown/reddish color. The style sac is well developed and entirely detached from the adjacent intestine. The intestine has numerous loops and curves within the visceral mass. The fecal pellets are coin-shaped. The present study certainly may be used as comparative scenario for specimens from other regions of the species range.Universidade de São Paulo (USP), Museu de Zoologia (MZUSP).2021-01-29info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/paz/article/view/16848810.11606/1807-0205/2021.61.08Papéis Avulsos de Zoologia; v. 61 (2021); e20216108Papéis Avulsos de Zoologia; Vol. 61 (2021); e20216108Papéis Avulsos de Zoologia; Vol. 61 (2021); e202161081807-02050031-1049reponame:Papéis Avulsos de Zoologia (Online)instname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/paz/article/view/168488/168353Copyright (c) 2021 Papéis Avulsos de Zoologiahttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessStakowian, NicoleSimone, Luiz Ricardo Lopes de2021-01-07T16:23:42Zoai:revistas.usp.br:article/168488Revistahttps://www.revistas.usp.br/pazPUBhttps://www.revistas.usp.br/paz/oaipublicacaomz@usp.br ; einicker@usp.br1807-02050031-1049opendoar:2023-01-12T16:42:01.466886Papéis Avulsos de Zoologia (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Morphological description of Cyrtopleura costata (Bivalvia: Pholadidae) from southern Brazil |
title |
Morphological description of Cyrtopleura costata (Bivalvia: Pholadidae) from southern Brazil |
spellingShingle |
Morphological description of Cyrtopleura costata (Bivalvia: Pholadidae) from southern Brazil Stakowian, Nicole Taxonomy Bivalve Morphology Myida Pholadoidea |
title_short |
Morphological description of Cyrtopleura costata (Bivalvia: Pholadidae) from southern Brazil |
title_full |
Morphological description of Cyrtopleura costata (Bivalvia: Pholadidae) from southern Brazil |
title_fullStr |
Morphological description of Cyrtopleura costata (Bivalvia: Pholadidae) from southern Brazil |
title_full_unstemmed |
Morphological description of Cyrtopleura costata (Bivalvia: Pholadidae) from southern Brazil |
title_sort |
Morphological description of Cyrtopleura costata (Bivalvia: Pholadidae) from southern Brazil |
author |
Stakowian, Nicole |
author_facet |
Stakowian, Nicole Simone, Luiz Ricardo Lopes de |
author_role |
author |
author2 |
Simone, Luiz Ricardo Lopes de |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Stakowian, Nicole Simone, Luiz Ricardo Lopes de |
dc.subject.por.fl_str_mv |
Taxonomy Bivalve Morphology Myida Pholadoidea |
topic |
Taxonomy Bivalve Morphology Myida Pholadoidea |
description |
The aim of the study is to describe in detail, for the first time, the internal and external anatomy of Cyrtopleura costata, which displays ellipsoid and elongated valves with beige periostracum, the anterior adductor muscle unites the valves in the pre-umbonal region, with abduction capacity in its dorsal half, sparing the ligament. Two accessory valves are identified: the mesoplax (calcified) located in the umbonal region; and the protoplax (corneus) above the anterior adductor muscle. Internally there is a pair of well-developed apophysis that supports the labial palps and the pedal muscles, and support part of the gills. The posterior half of mantle ventral edge is fused and richly muscular, working as auxiliary adductor muscle. The siphons are completely united with each other, the incurrent being larger than the excurrent. The foot is small (about ⅛ the size of the animal). The kidneys extend laterally on the dorsal surface, solid, presenting a brown/reddish color. The style sac is well developed and entirely detached from the adjacent intestine. The intestine has numerous loops and curves within the visceral mass. The fecal pellets are coin-shaped. The present study certainly may be used as comparative scenario for specimens from other regions of the species range. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-01-29 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://www.revistas.usp.br/paz/article/view/168488 10.11606/1807-0205/2021.61.08 |
url |
https://www.revistas.usp.br/paz/article/view/168488 |
identifier_str_mv |
10.11606/1807-0205/2021.61.08 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/paz/article/view/168488/168353 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2021 Papéis Avulsos de Zoologia https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2021 Papéis Avulsos de Zoologia https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade de São Paulo (USP), Museu de Zoologia (MZUSP). |
publisher.none.fl_str_mv |
Universidade de São Paulo (USP), Museu de Zoologia (MZUSP). |
dc.source.none.fl_str_mv |
Papéis Avulsos de Zoologia; v. 61 (2021); e20216108 Papéis Avulsos de Zoologia; Vol. 61 (2021); e20216108 Papéis Avulsos de Zoologia; Vol. 61 (2021); e20216108 1807-0205 0031-1049 reponame:Papéis Avulsos de Zoologia (Online) instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Papéis Avulsos de Zoologia (Online) |
collection |
Papéis Avulsos de Zoologia (Online) |
repository.name.fl_str_mv |
Papéis Avulsos de Zoologia (Online) - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
publicacaomz@usp.br ; einicker@usp.br |
_version_ |
1797051529058844672 |