A new species of holothuroid from the Labrador Sea (eastern Canada): Pseudothyone labradorensis sp. nov. (Echinodermata, Holothuroidea, Dendrochirotida, Sclerodactylidae)
A new species of holothuroid, Pseudothyone labradorensis sp. nov. (order Dendrochirotida and family Sclerodactylidae), was discovered off the coast of Labrador (eastern Canada) at a depth of 740–969 m. Two specimens were described based on morphological and genetic parameters. Distinctive characters...
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Pensoft Publishers
2024
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Online Access: | https://doi.org/10.3897/zookeys.1206.123364 https://zookeys.pensoft.net/article/123364/ https://zookeys.pensoft.net/article/123364/download/pdf/ |
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ftpensoft:10.3897/zookeys.1206.123364 2024-09-15T18:17:16+00:00 A new species of holothuroid from the Labrador Sea (eastern Canada): Pseudothyone labradorensis sp. nov. (Echinodermata, Holothuroidea, Dendrochirotida, Sclerodactylidae) Kremenetskaia,Antonina Alvestad,Tom Penney,Heather Hamel,Jean-François de Moura Neves,Bárbara Cote,David Mercier,Annie 2024 text/html https://doi.org/10.3897/zookeys.1206.123364 https://zookeys.pensoft.net/article/123364/ https://zookeys.pensoft.net/article/123364/download/pdf/ en eng Pensoft Publishers info:eu-repo/semantics/altIdentifier/eissn/1313-2970 info:eu-repo/semantics/altIdentifier/pissn/1313-2989 info:eu-repo/semantics/openAccess CC0 ZooKeys 1206: 191-206 Bathyal fauna distribution Northwest Atlantic fauna sea cucumbers taxonomy Research Article 2024 ftpensoft https://doi.org/10.3897/zookeys.1206.123364 2024-07-15T14:06:47Z A new species of holothuroid, Pseudothyone labradorensis sp. nov. (order Dendrochirotida and family Sclerodactylidae), was discovered off the coast of Labrador (eastern Canada) at a depth of 740–969 m. Two specimens were described based on morphological and genetic parameters. Distinctive characters included pinkish body colour, presence of tube feet on a ‘tail’, supporting rod-shaped ossicles in the tube feet, and rod-shaped ossicles in the tentacles. To investigate its phylogenetic relationships, partial sequences of COI were obtained for the new species as well as for the type species P. raphanus and another North Atlantic species P. serrifera. According to the phylogenetic analysis, P. labradorensis sp. nov. appeared in a well-supported clade with P. raphanus and P. serrifera. Molecular data also suggest polyphyly of the genus, showing the Northeast Pacific species Pseudothyone belli recovered outside of the clade containing the type species. Pseudothyone labradorensis sp. nov. is the first species of the genus from the Northwest Atlantic. A key to the North Atlantic Pseudothyone is provided. Article in Journal/Newspaper Labrador Sea North Atlantic Northwest Atlantic Pensoft Publishers ZooKeys 1206 191 206 |
institution |
Open Polar |
collection |
Pensoft Publishers |
op_collection_id |
ftpensoft |
language |
English |
topic |
Bathyal fauna distribution Northwest Atlantic fauna sea cucumbers taxonomy |
spellingShingle |
Bathyal fauna distribution Northwest Atlantic fauna sea cucumbers taxonomy Kremenetskaia,Antonina Alvestad,Tom Penney,Heather Hamel,Jean-François de Moura Neves,Bárbara Cote,David Mercier,Annie A new species of holothuroid from the Labrador Sea (eastern Canada): Pseudothyone labradorensis sp. nov. (Echinodermata, Holothuroidea, Dendrochirotida, Sclerodactylidae) |
topic_facet |
Bathyal fauna distribution Northwest Atlantic fauna sea cucumbers taxonomy |
description |
A new species of holothuroid, Pseudothyone labradorensis sp. nov. (order Dendrochirotida and family Sclerodactylidae), was discovered off the coast of Labrador (eastern Canada) at a depth of 740–969 m. Two specimens were described based on morphological and genetic parameters. Distinctive characters included pinkish body colour, presence of tube feet on a ‘tail’, supporting rod-shaped ossicles in the tube feet, and rod-shaped ossicles in the tentacles. To investigate its phylogenetic relationships, partial sequences of COI were obtained for the new species as well as for the type species P. raphanus and another North Atlantic species P. serrifera. According to the phylogenetic analysis, P. labradorensis sp. nov. appeared in a well-supported clade with P. raphanus and P. serrifera. Molecular data also suggest polyphyly of the genus, showing the Northeast Pacific species Pseudothyone belli recovered outside of the clade containing the type species. Pseudothyone labradorensis sp. nov. is the first species of the genus from the Northwest Atlantic. A key to the North Atlantic Pseudothyone is provided. |
format |
Article in Journal/Newspaper |
author |
Kremenetskaia,Antonina Alvestad,Tom Penney,Heather Hamel,Jean-François de Moura Neves,Bárbara Cote,David Mercier,Annie |
author_facet |
Kremenetskaia,Antonina Alvestad,Tom Penney,Heather Hamel,Jean-François de Moura Neves,Bárbara Cote,David Mercier,Annie |
author_sort |
Kremenetskaia,Antonina |
title |
A new species of holothuroid from the Labrador Sea (eastern Canada): Pseudothyone labradorensis sp. nov. (Echinodermata, Holothuroidea, Dendrochirotida, Sclerodactylidae) |
title_short |
A new species of holothuroid from the Labrador Sea (eastern Canada): Pseudothyone labradorensis sp. nov. (Echinodermata, Holothuroidea, Dendrochirotida, Sclerodactylidae) |
title_full |
A new species of holothuroid from the Labrador Sea (eastern Canada): Pseudothyone labradorensis sp. nov. (Echinodermata, Holothuroidea, Dendrochirotida, Sclerodactylidae) |
title_fullStr |
A new species of holothuroid from the Labrador Sea (eastern Canada): Pseudothyone labradorensis sp. nov. (Echinodermata, Holothuroidea, Dendrochirotida, Sclerodactylidae) |
title_full_unstemmed |
A new species of holothuroid from the Labrador Sea (eastern Canada): Pseudothyone labradorensis sp. nov. (Echinodermata, Holothuroidea, Dendrochirotida, Sclerodactylidae) |
title_sort |
new species of holothuroid from the labrador sea (eastern canada): pseudothyone labradorensis sp. nov. (echinodermata, holothuroidea, dendrochirotida, sclerodactylidae) |
publisher |
Pensoft Publishers |
publishDate |
2024 |
url |
https://doi.org/10.3897/zookeys.1206.123364 https://zookeys.pensoft.net/article/123364/ https://zookeys.pensoft.net/article/123364/download/pdf/ |
genre |
Labrador Sea North Atlantic Northwest Atlantic |
genre_facet |
Labrador Sea North Atlantic Northwest Atlantic |
op_source |
ZooKeys 1206: 191-206 |
op_relation |
info:eu-repo/semantics/altIdentifier/eissn/1313-2970 info:eu-repo/semantics/altIdentifier/pissn/1313-2989 |
op_rights |
info:eu-repo/semantics/openAccess CC0 |
op_doi |
https://doi.org/10.3897/zookeys.1206.123364 |
container_title |
ZooKeys |
container_volume |
1206 |
container_start_page |
191 |
op_container_end_page |
206 |
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1810455286998106112 |