Austropallene halanychi sp. nov., a new species of sea spider (Pycnogonida, Callipallenidae) from the Ross Sea, Antarctica
Here we present Austropallene halanychi sp. nov., a new species of pycnogonid within the family Callipallenidae (Pycnogonida), collected from the Ross Sea, Antarctica. While retaining key morphological features known for the genus Austropallene Hodgson, 1915a, the new species is distinguished from c...
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Online Access: | https://doi.org/10.3897/zookeys.1185.108286 https://zookeys.pensoft.net/article/108286/ |
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ftpensoft:10.3897/zookeys.1185.108286 2023-12-31T10:00:12+01:00 Austropallene halanychi sp. nov., a new species of sea spider (Pycnogonida, Callipallenidae) from the Ross Sea, Antarctica Zehnpfennig,Jessica Mahon,Andrew R. 2023 text/html https://doi.org/10.3897/zookeys.1185.108286 https://zookeys.pensoft.net/article/108286/ 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 CC BY 4.0 ZooKeys 1185: 163-180 Biodiversity morphology mtDNA phylogeny taxonomy Research Article 2023 ftpensoft https://doi.org/10.3897/zookeys.1185.108286 2023-12-05T01:07:18Z Here we present Austropallene halanychi sp. nov., a new species of pycnogonid within the family Callipallenidae (Pycnogonida), collected from the Ross Sea, Antarctica. While retaining key morphological features known for the genus Austropallene Hodgson, 1915a, the new species is distinguished from congeners by its much larger size, along with the combined absence of a denticle on the inner surface of the fixed finger of the chelifore claw along with the presence of small conical outgrowths where the fixed finger of the chelifore claw meets the movable finger on both the dorsal and ventral sides, and also the ability to fully close the chelifore claw. Additionally, the complete mitochondrial genome of A. halanychi is consistent with other members of the genus Austropallene in terms of gene order and directionality. A phylogenetic tree consisting of mitochondrial protein-coding gene data places A. halanychi as sister to Austropallene cornigera (Möbius, 1902). Additionally, a phylogenetic tree constructed using partial COI data from other callipallenids placed the new species in a clade containing the genus Austropallene. The combination of molecular data in addition to key morphological differences from similar species in the genus leaves no doubt that the new taxon is a new Antarctic species of Austropallene. Article in Journal/Newspaper Antarc* Antarctic Antarctica Ross Sea Pensoft Publishers ZooKeys 1185 163 180 |
institution |
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Pensoft Publishers |
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language |
English |
topic |
Biodiversity morphology mtDNA phylogeny taxonomy |
spellingShingle |
Biodiversity morphology mtDNA phylogeny taxonomy Zehnpfennig,Jessica Mahon,Andrew R. Austropallene halanychi sp. nov., a new species of sea spider (Pycnogonida, Callipallenidae) from the Ross Sea, Antarctica |
topic_facet |
Biodiversity morphology mtDNA phylogeny taxonomy |
description |
Here we present Austropallene halanychi sp. nov., a new species of pycnogonid within the family Callipallenidae (Pycnogonida), collected from the Ross Sea, Antarctica. While retaining key morphological features known for the genus Austropallene Hodgson, 1915a, the new species is distinguished from congeners by its much larger size, along with the combined absence of a denticle on the inner surface of the fixed finger of the chelifore claw along with the presence of small conical outgrowths where the fixed finger of the chelifore claw meets the movable finger on both the dorsal and ventral sides, and also the ability to fully close the chelifore claw. Additionally, the complete mitochondrial genome of A. halanychi is consistent with other members of the genus Austropallene in terms of gene order and directionality. A phylogenetic tree consisting of mitochondrial protein-coding gene data places A. halanychi as sister to Austropallene cornigera (Möbius, 1902). Additionally, a phylogenetic tree constructed using partial COI data from other callipallenids placed the new species in a clade containing the genus Austropallene. The combination of molecular data in addition to key morphological differences from similar species in the genus leaves no doubt that the new taxon is a new Antarctic species of Austropallene. |
format |
Article in Journal/Newspaper |
author |
Zehnpfennig,Jessica Mahon,Andrew R. |
author_facet |
Zehnpfennig,Jessica Mahon,Andrew R. |
author_sort |
Zehnpfennig,Jessica |
title |
Austropallene halanychi sp. nov., a new species of sea spider (Pycnogonida, Callipallenidae) from the Ross Sea, Antarctica |
title_short |
Austropallene halanychi sp. nov., a new species of sea spider (Pycnogonida, Callipallenidae) from the Ross Sea, Antarctica |
title_full |
Austropallene halanychi sp. nov., a new species of sea spider (Pycnogonida, Callipallenidae) from the Ross Sea, Antarctica |
title_fullStr |
Austropallene halanychi sp. nov., a new species of sea spider (Pycnogonida, Callipallenidae) from the Ross Sea, Antarctica |
title_full_unstemmed |
Austropallene halanychi sp. nov., a new species of sea spider (Pycnogonida, Callipallenidae) from the Ross Sea, Antarctica |
title_sort |
austropallene halanychi sp. nov., a new species of sea spider (pycnogonida, callipallenidae) from the ross sea, antarctica |
publisher |
Pensoft Publishers |
publishDate |
2023 |
url |
https://doi.org/10.3897/zookeys.1185.108286 https://zookeys.pensoft.net/article/108286/ |
genre |
Antarc* Antarctic Antarctica Ross Sea |
genre_facet |
Antarc* Antarctic Antarctica Ross Sea |
op_source |
ZooKeys 1185: 163-180 |
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 CC BY 4.0 |
op_doi |
https://doi.org/10.3897/zookeys.1185.108286 |
container_title |
ZooKeys |
container_volume |
1185 |
container_start_page |
163 |
op_container_end_page |
180 |
_version_ |
1786846987894652928 |