A new species of Euclymene (Maldanidae, Annelida) from Brazil, with new combinations, and phylogenetic implications for Euclymeninae

Abstract Maldanids are tube-building polychaetes, known as bamboo-worms; inhabit diverse marine regions throughout the world. The subfamily Euclymeninae was proposed to include forms with anal and cephalic plates, a funnel-shaped pygidium, and a terminal anus. Euclymene, the type genus of Euclymenin...

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Main Authors: JOSÉ ERIBERTO DE ASSIS, JOSÉ ROBERTO BOTELHO DE SOUZA, KIRK FITZHUGH, MARTIN LINDSEY CHRISTOFFERSEN
Format: Article
Language:English
Published: Academia Brasileira de Ciências 2022-12-01
Series:Anais da Academia Brasileira de Ciências
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652022000801308&tlng=en
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author JOSÉ ERIBERTO DE ASSIS
JOSÉ ROBERTO BOTELHO DE SOUZA
KIRK FITZHUGH
MARTIN LINDSEY CHRISTOFFERSEN
author_facet JOSÉ ERIBERTO DE ASSIS
JOSÉ ROBERTO BOTELHO DE SOUZA
KIRK FITZHUGH
MARTIN LINDSEY CHRISTOFFERSEN
author_sort JOSÉ ERIBERTO DE ASSIS
collection DOAJ
description Abstract Maldanids are tube-building polychaetes, known as bamboo-worms; inhabit diverse marine regions throughout the world. The subfamily Euclymeninae was proposed to include forms with anal and cephalic plates, a funnel-shaped pygidium, and a terminal anus. Euclymene, the type genus of Euclymeninae, has about 18 valid species. Euclymene vidali sp. nov. is defined and members of the species described from Northeastern Brazil. Members of this species have 23 chaetigers, and one pre-pygidial achaetous segment; nuchal grooves extend through three quarters of the cephalic plate, and there is one acicular spine with a denticulate tip. Euclymene africana, and E. watsoni, are here recognized, respectively, as Isocirrus africana comb. nov., and I. watsoni comb. nov. Three monotypic genera are invalid: Macroclymenella, Eupraxillella, and Pseudoclyemene; their species should be recognized as Clymenella stewartensis com. nov., Praxillella antarctica com. nov., and Praxillela quadrilobata com. nov., respectively. An identification key and a comparative table for all species of Euclymene are provided. A comparative table for all genera of Euclymeninae is also furnished. The paraphyletic status of Euclymene and Euclymeninae is discussed. The taxon Maldanoplaca is not code compliant and should only be regarded as an informal name.
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spelling doaj.art-43dae209495a43b1949307db91dee3b12022-12-22T03:54:53ZengAcademia Brasileira de CiênciasAnais da Academia Brasileira de Ciências1678-26902022-12-0194suppl 410.1590/0001-3765202220210283A new species of Euclymene (Maldanidae, Annelida) from Brazil, with new combinations, and phylogenetic implications for EuclymeninaeJOSÉ ERIBERTO DE ASSIShttps://orcid.org/0000-0002-1522-2904JOSÉ ROBERTO BOTELHO DE SOUZAhttps://orcid.org/0000-0002-0144-3992KIRK FITZHUGHhttps://orcid.org/0000-0002-1366-2260MARTIN LINDSEY CHRISTOFFERSENhttps://orcid.org/0000-0001-8108-1938Abstract Maldanids are tube-building polychaetes, known as bamboo-worms; inhabit diverse marine regions throughout the world. The subfamily Euclymeninae was proposed to include forms with anal and cephalic plates, a funnel-shaped pygidium, and a terminal anus. Euclymene, the type genus of Euclymeninae, has about 18 valid species. Euclymene vidali sp. nov. is defined and members of the species described from Northeastern Brazil. Members of this species have 23 chaetigers, and one pre-pygidial achaetous segment; nuchal grooves extend through three quarters of the cephalic plate, and there is one acicular spine with a denticulate tip. Euclymene africana, and E. watsoni, are here recognized, respectively, as Isocirrus africana comb. nov., and I. watsoni comb. nov. Three monotypic genera are invalid: Macroclymenella, Eupraxillella, and Pseudoclyemene; their species should be recognized as Clymenella stewartensis com. nov., Praxillella antarctica com. nov., and Praxillela quadrilobata com. nov., respectively. An identification key and a comparative table for all species of Euclymene are provided. A comparative table for all genera of Euclymeninae is also furnished. The paraphyletic status of Euclymene and Euclymeninae is discussed. The taxon Maldanoplaca is not code compliant and should only be regarded as an informal name.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652022000801308&tlng=enEuclymeninaeMaldanidaenew speciespolychaetasystematics
spellingShingle JOSÉ ERIBERTO DE ASSIS
JOSÉ ROBERTO BOTELHO DE SOUZA
KIRK FITZHUGH
MARTIN LINDSEY CHRISTOFFERSEN
A new species of Euclymene (Maldanidae, Annelida) from Brazil, with new combinations, and phylogenetic implications for Euclymeninae
Anais da Academia Brasileira de Ciências
Euclymeninae
Maldanidae
new species
polychaeta
systematics
title A new species of Euclymene (Maldanidae, Annelida) from Brazil, with new combinations, and phylogenetic implications for Euclymeninae
title_full A new species of Euclymene (Maldanidae, Annelida) from Brazil, with new combinations, and phylogenetic implications for Euclymeninae
title_fullStr A new species of Euclymene (Maldanidae, Annelida) from Brazil, with new combinations, and phylogenetic implications for Euclymeninae
title_full_unstemmed A new species of Euclymene (Maldanidae, Annelida) from Brazil, with new combinations, and phylogenetic implications for Euclymeninae
title_short A new species of Euclymene (Maldanidae, Annelida) from Brazil, with new combinations, and phylogenetic implications for Euclymeninae
title_sort new species of euclymene maldanidae annelida from brazil with new combinations and phylogenetic implications for euclymeninae
topic Euclymeninae
Maldanidae
new species
polychaeta
systematics
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652022000801308&tlng=en
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