New genus and two new species of the family Ethmolaimidae (Nematoda: Chromadorida), found in two different cold-seep environments
This study describes a new genus Dystomanema gen. nov. with two new species, D. cadizensis sp. nov. and D. brandtae sp. nov. within the family Ethmolaimidae, subfamily Neotonchinae, based on specimens from two low-activity cold-seep environments at distant geographical locations. The new genus was f...
Published in: | Zootaxa |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2013
|
Subjects: | |
Online Access: | https://biblio.ugent.be/publication/5685299 http://hdl.handle.net/1854/LU-5685299 https://doi.org/10.11646/zootaxa.3692.1.4 https://biblio.ugent.be/publication/5685299/file/5685448 |
id |
ftunivgent:oai:archive.ugent.be:5685299 |
---|---|
record_format |
openpolar |
spelling |
ftunivgent:oai:archive.ugent.be:5685299 2023-06-11T04:06:50+02:00 New genus and two new species of the family Ethmolaimidae (Nematoda: Chromadorida), found in two different cold-seep environments Campinas Bezerra, Tânia Pape, Ellen Hauquier, Freija Vanreusel, Ann Ingels, Jeroen 2013 application/pdf https://biblio.ugent.be/publication/5685299 http://hdl.handle.net/1854/LU-5685299 https://doi.org/10.11646/zootaxa.3692.1.4 https://biblio.ugent.be/publication/5685299/file/5685448 eng eng https://biblio.ugent.be/publication/5685299 http://hdl.handle.net/1854/LU-5685299 http://dx.doi.org/10.11646/zootaxa.3692.1.4 https://biblio.ugent.be/publication/5685299/file/5685448 No license (in copyright) info:eu-repo/semantics/restrictedAccess ZOOTAXA ISSN: 1175-5326 Biology and Life Sciences OCEAN DIVERSITY CADIZ NW GULF NORTH-SEA METHANE SEEP ADJACENT BOTTOMS RICH BRINE SEEP EAST FLOWER GARDEN DARWIN MUD VOLCANO Southern Ocean Larsen Antarctic Gulf of Cádiz Northeast Atlantic Dystomanema gen. nov cold seep Dystomanema cadizensis gen. nov. sp. nov Dystomanema brandtae gen. nov. sp. nov journalArticle info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2013 ftunivgent https://doi.org/10.11646/zootaxa.3692.1.4 2023-05-10T22:26:10Z This study describes a new genus Dystomanema gen. nov. with two new species, D. cadizensis sp. nov. and D. brandtae sp. nov. within the family Ethmolaimidae, subfamily Neotonchinae, based on specimens from two low-activity cold-seep environments at distant geographical locations. The new genus was first identified in samples from the Darwin mud volcano (1100m depth) in the Gulf of Cádiz and later on also found in samples from a low-activity seep in the Larsen B embayment (820m depth) off the eastern Antarctic Peninsula. Until now, the family Ethmolaimidae contained nine genera: Ethmolaimus and Paraethmolaimus in the subfamily Ethmolaiminae, and Comesa, Filitonchoides, Filitonchus, Gomphionchus, Gomphionema, Nannolaimus, and Neothonchus in the subfamily Neotonchinae. The most important family characteristics are: an annulated cuticle bearing transverse rows of dots, cephalic sensilla arrangement of 6+6+4, a spiral amphid, an oesophagus with muscular posterior bulb, paired gonads and males with cup-shaped precloacal supplements. The new genus resembles Comesa and Neotonchus, but is typified by a ventrally displaced oral opening with three very small teeth that are easily overlooked. D. cadizensis gen. nov. sp. nov. is characterized by the 1401-2123µm long body; cuticle transversally striated with fine punctation; head conical; low lips; amphid spiralled 3 turns, oral opening ventrally displaced, male with outstretched testes; spicules of equal size; gubernaculum plate-like and ten to twelve conspicuous cup-shaped precloacal supplements with external longitudinal articulated flange. D. brandtae gen. nov. sp. nov. can be distinguished by the 2438-3280µm long body; cuticle transversally striated with fine punctuation; head conical; low lips; amphid spiraled 3+ turns; oral opening ventrally displaced; male with anterior testes outstretched and posterior one smaller and reflexed; spicules of equal size; gubernaculum plate-like and twenty conspicuous cup-shaped precloacal supplements with external longitudinal ... Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Northeast Atlantic Southern Ocean Ghent University Academic Bibliography Antarctic Southern Ocean Antarctic Peninsula Zootaxa 3692 1 7 |
institution |
Open Polar |
collection |
Ghent University Academic Bibliography |
op_collection_id |
ftunivgent |
language |
English |
topic |
Biology and Life Sciences OCEAN DIVERSITY CADIZ NW GULF NORTH-SEA METHANE SEEP ADJACENT BOTTOMS RICH BRINE SEEP EAST FLOWER GARDEN DARWIN MUD VOLCANO Southern Ocean Larsen Antarctic Gulf of Cádiz Northeast Atlantic Dystomanema gen. nov cold seep Dystomanema cadizensis gen. nov. sp. nov Dystomanema brandtae gen. nov. sp. nov |
spellingShingle |
Biology and Life Sciences OCEAN DIVERSITY CADIZ NW GULF NORTH-SEA METHANE SEEP ADJACENT BOTTOMS RICH BRINE SEEP EAST FLOWER GARDEN DARWIN MUD VOLCANO Southern Ocean Larsen Antarctic Gulf of Cádiz Northeast Atlantic Dystomanema gen. nov cold seep Dystomanema cadizensis gen. nov. sp. nov Dystomanema brandtae gen. nov. sp. nov Campinas Bezerra, Tânia Pape, Ellen Hauquier, Freija Vanreusel, Ann Ingels, Jeroen New genus and two new species of the family Ethmolaimidae (Nematoda: Chromadorida), found in two different cold-seep environments |
topic_facet |
Biology and Life Sciences OCEAN DIVERSITY CADIZ NW GULF NORTH-SEA METHANE SEEP ADJACENT BOTTOMS RICH BRINE SEEP EAST FLOWER GARDEN DARWIN MUD VOLCANO Southern Ocean Larsen Antarctic Gulf of Cádiz Northeast Atlantic Dystomanema gen. nov cold seep Dystomanema cadizensis gen. nov. sp. nov Dystomanema brandtae gen. nov. sp. nov |
description |
This study describes a new genus Dystomanema gen. nov. with two new species, D. cadizensis sp. nov. and D. brandtae sp. nov. within the family Ethmolaimidae, subfamily Neotonchinae, based on specimens from two low-activity cold-seep environments at distant geographical locations. The new genus was first identified in samples from the Darwin mud volcano (1100m depth) in the Gulf of Cádiz and later on also found in samples from a low-activity seep in the Larsen B embayment (820m depth) off the eastern Antarctic Peninsula. Until now, the family Ethmolaimidae contained nine genera: Ethmolaimus and Paraethmolaimus in the subfamily Ethmolaiminae, and Comesa, Filitonchoides, Filitonchus, Gomphionchus, Gomphionema, Nannolaimus, and Neothonchus in the subfamily Neotonchinae. The most important family characteristics are: an annulated cuticle bearing transverse rows of dots, cephalic sensilla arrangement of 6+6+4, a spiral amphid, an oesophagus with muscular posterior bulb, paired gonads and males with cup-shaped precloacal supplements. The new genus resembles Comesa and Neotonchus, but is typified by a ventrally displaced oral opening with three very small teeth that are easily overlooked. D. cadizensis gen. nov. sp. nov. is characterized by the 1401-2123µm long body; cuticle transversally striated with fine punctation; head conical; low lips; amphid spiralled 3 turns, oral opening ventrally displaced, male with outstretched testes; spicules of equal size; gubernaculum plate-like and ten to twelve conspicuous cup-shaped precloacal supplements with external longitudinal articulated flange. D. brandtae gen. nov. sp. nov. can be distinguished by the 2438-3280µm long body; cuticle transversally striated with fine punctuation; head conical; low lips; amphid spiraled 3+ turns; oral opening ventrally displaced; male with anterior testes outstretched and posterior one smaller and reflexed; spicules of equal size; gubernaculum plate-like and twenty conspicuous cup-shaped precloacal supplements with external longitudinal ... |
format |
Article in Journal/Newspaper |
author |
Campinas Bezerra, Tânia Pape, Ellen Hauquier, Freija Vanreusel, Ann Ingels, Jeroen |
author_facet |
Campinas Bezerra, Tânia Pape, Ellen Hauquier, Freija Vanreusel, Ann Ingels, Jeroen |
author_sort |
Campinas Bezerra, Tânia |
title |
New genus and two new species of the family Ethmolaimidae (Nematoda: Chromadorida), found in two different cold-seep environments |
title_short |
New genus and two new species of the family Ethmolaimidae (Nematoda: Chromadorida), found in two different cold-seep environments |
title_full |
New genus and two new species of the family Ethmolaimidae (Nematoda: Chromadorida), found in two different cold-seep environments |
title_fullStr |
New genus and two new species of the family Ethmolaimidae (Nematoda: Chromadorida), found in two different cold-seep environments |
title_full_unstemmed |
New genus and two new species of the family Ethmolaimidae (Nematoda: Chromadorida), found in two different cold-seep environments |
title_sort |
new genus and two new species of the family ethmolaimidae (nematoda: chromadorida), found in two different cold-seep environments |
publishDate |
2013 |
url |
https://biblio.ugent.be/publication/5685299 http://hdl.handle.net/1854/LU-5685299 https://doi.org/10.11646/zootaxa.3692.1.4 https://biblio.ugent.be/publication/5685299/file/5685448 |
geographic |
Antarctic Southern Ocean Antarctic Peninsula |
geographic_facet |
Antarctic Southern Ocean Antarctic Peninsula |
genre |
Antarc* Antarctic Antarctic Peninsula Northeast Atlantic Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Northeast Atlantic Southern Ocean |
op_source |
ZOOTAXA ISSN: 1175-5326 |
op_relation |
https://biblio.ugent.be/publication/5685299 http://hdl.handle.net/1854/LU-5685299 http://dx.doi.org/10.11646/zootaxa.3692.1.4 https://biblio.ugent.be/publication/5685299/file/5685448 |
op_rights |
No license (in copyright) info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.11646/zootaxa.3692.1.4 |
container_title |
Zootaxa |
container_volume |
3692 |
container_issue |
1 |
container_start_page |
7 |
_version_ |
1768378997095268352 |