A new peltospirid snail (Gastropoda Neomphalida) adds to the unique biodiversity of Longqi vent field, Southwest Indian Ridge
A new peltospirid snail (Gastropoda Neomphalida) adds to the unique biodiversity of Longqi vent field, Southwest Indian Ridge
The biodiversity of deep-sea hydrothermal vents in the Indian Ocean remains poorly characterised compared with that of their Pacific and Atlantic counterparts. Although the Longqi hydrothermal vent field is the most extensively explored vent site on the ultra-slow-spreading Southwest Indian Ridge, it is still a source of new discoveries. Here, we report and formally describe a new peltospirid snail from Longqi–Lirapex felix sp. nov. Known from only two specimens, it differs from other named Lirapex species by a depressed spire and the lack of coil loosening on the body whorl. Examinations of the external anatomy and radular characteristics agree with its placement in Lirapex, which is also supported by a molecular phylogeny reconstructed using the barcoding fragment of the mitochondrial cytochrome c oxidase I (COI) gene. This is the fifth peltospirid snail known to inhabit the Longqi field, three of which (including Lirapex felix sp. nov.) have been found nowhere else. There is growing evidence that the Longqi field represents a biogeographically unique site among Indian Ocean vents. The discovery of Lirapex felix sp. nov. adds to the unique biodiversity of Longqi field, with implications for conservation in the light of potential deep-sea mining. This work is registered in ZooBank under: urn:lsid:zoobank.org:pub:3B892762-2110-4A1E-A80D-1779CBEC5EB3.
deep sea, hydrothermal vent, Indian Ocean, Mollusca, new species
851-866
Chen, Chong
3faad3e1-b898-4f4b-b418-9c1736e53f95
Han, Yuru
cbfeca4f-eda1-4fe9-81fd-2a73b0321c96
Copley, Jonathan T.
5f30e2a6-76c1-4150-9a42-dcfb8f5788ef
Zhou, Yadong
8795147f-cd8a-45c8-bab8-4f5b8eea9998
16 June 2021
Chen, Chong
3faad3e1-b898-4f4b-b418-9c1736e53f95
Han, Yuru
cbfeca4f-eda1-4fe9-81fd-2a73b0321c96
Copley, Jonathan T.
5f30e2a6-76c1-4150-9a42-dcfb8f5788ef
Zhou, Yadong
8795147f-cd8a-45c8-bab8-4f5b8eea9998
Chen, Chong, Han, Yuru, Copley, Jonathan T. and Zhou, Yadong
(2021)
A new peltospirid snail (Gastropoda Neomphalida) adds to the unique biodiversity of Longqi vent field, Southwest Indian Ridge.
Journal of Natural History, 55 (13-14), .
(doi:10.1080/00222933.2021.1923851).
Abstract
The biodiversity of deep-sea hydrothermal vents in the Indian Ocean remains poorly characterised compared with that of their Pacific and Atlantic counterparts. Although the Longqi hydrothermal vent field is the most extensively explored vent site on the ultra-slow-spreading Southwest Indian Ridge, it is still a source of new discoveries. Here, we report and formally describe a new peltospirid snail from Longqi–Lirapex felix sp. nov. Known from only two specimens, it differs from other named Lirapex species by a depressed spire and the lack of coil loosening on the body whorl. Examinations of the external anatomy and radular characteristics agree with its placement in Lirapex, which is also supported by a molecular phylogeny reconstructed using the barcoding fragment of the mitochondrial cytochrome c oxidase I (COI) gene. This is the fifth peltospirid snail known to inhabit the Longqi field, three of which (including Lirapex felix sp. nov.) have been found nowhere else. There is growing evidence that the Longqi field represents a biogeographically unique site among Indian Ocean vents. The discovery of Lirapex felix sp. nov. adds to the unique biodiversity of Longqi field, with implications for conservation in the light of potential deep-sea mining. This work is registered in ZooBank under: urn:lsid:zoobank.org:pub:3B892762-2110-4A1E-A80D-1779CBEC5EB3.
Text
Chen_et_al_2021_Lirapex_felix
- Accepted Manuscript
More information
Accepted/In Press date: 23 April 2021
e-pub ahead of print date: 16 June 2021
Published date: 16 June 2021
Additional Information:
Funding Information:
RRS James Cook cruise JC67 was supported by a United Kingdom Natural Environmental Research Council (NERC) Small Research Grant to JTC [NE/H012087/1], and the R/V Xiangyanghong 9 cruise was supported by the Foundation of China Ocean Mineral Resources R & D Association [No. DYHC-125-35]. CC was supported by a Grant-in-Aid for Scientific Research (KAKENHI) from the Japan Society for the Promotion of Science (JSPS) [under grant code 18K06401]. This work was also supported by an additional grant from the Foundation of China Ocean Mineral Resources R & D Association [No. DY135-E2-1-02] and a Scientific Research Fund of the Second Institute of Oceanography, Ministry of Natural Resources, China [Grant No. QNYC1902]. We thank the Master and crew of RRS James Cook and R/V Xiangyanghong 9 for their tireless support of scientific activity onboard expeditions JC67 and DY35, respectively. We extend the same thanks to the pilots and technical teams of ROV Kiel6000 and HOV Jiaolong, staff of the United Kingdom National Marine Facilities at the National Oceanography Centre, for logistics and shipboard support, and all scientists onboard the expeditions. Yukiko Nagai (JAMSTEC) is thanked for her assistance with microscopy.
Publisher Copyright:
© 2021 Informa UK Limited, trading as Taylor & Francis Group.
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
Keywords:
deep sea, hydrothermal vent, Indian Ocean, Mollusca, new species
Identifiers
Local EPrints ID: 450056
URI: http://eprints.soton.ac.uk/id/eprint/450056
ISSN: 0022-2933
PURE UUID: d73ab226-c593-4017-add3-80360dcf7f79
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Date deposited: 07 Jul 2021 16:31
Last modified: 18 Mar 2024 02:40
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Author:
Chong Chen
Author:
Yuru Han
Author:
Yadong Zhou
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