2022
DOI: 10.3389/fmars.2022.889022
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Stirring the Deep, Disentangling the Complexity: Report on the Third Species of Thermochiton (Mollusca: Polyplacophora) From Haima Cold Seeps

Abstract: This study documents a new deep-sea chiton from the Haima cold seeps. Thermochiton xui. nov. is the third species of the genus Thermochiton and the first occurrence of this genus in the South China Sea. This species is identified by its morphological characteristics and the molecular sequence of a Thermochiton species is reported for the first time. The placement of the new species is determined in the phylogenetic tree of Ischnochitonidae by Maximum Likelihood (ML) and Bayesian inference (BI) methods, based o… Show more

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Cited by 3 publications
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“…22 The patellogastropod limpets mainly living on mussel shells at Haima were exclusively B. lactea; but at Site F the dominant species was Bathyacmaea nipponica which co-occurred with a few B. lactea. 41,42 Clusters of the vestimentiferan tubeworm Paraescarpia echinospica were found from at least three localities at Haima; 29 nevertheless, only one individual of this species was found at Site F. 20 Brittle stars were highly abundant at Haima, but they were scarce at Site F. 37 At least 35 of the species found at Haima (~54%) appear to be endemic to this site, but only seven of them have been named, including the vesicomyid clam Archivesica marissinica, 21 the glass scallop Catillopecten margaritatus, 43 the bathymodioline mussels Gigantidas haimaensis 22 and Nypamodiolus samadiae, 35 the limpet Paralepetopsis polita, 44 the chiton Thermochiton xui, 36 the brittle star Histampica haimaensis, 37 and the tubeworm Sclerolinum annulatum. 34 Many others are also almost certainly undescribed species.…”
Section: Updated Species List Molecular Barcodes and Molecular Phylog...mentioning
confidence: 99%
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“…22 The patellogastropod limpets mainly living on mussel shells at Haima were exclusively B. lactea; but at Site F the dominant species was Bathyacmaea nipponica which co-occurred with a few B. lactea. 41,42 Clusters of the vestimentiferan tubeworm Paraescarpia echinospica were found from at least three localities at Haima; 29 nevertheless, only one individual of this species was found at Site F. 20 Brittle stars were highly abundant at Haima, but they were scarce at Site F. 37 At least 35 of the species found at Haima (~54%) appear to be endemic to this site, but only seven of them have been named, including the vesicomyid clam Archivesica marissinica, 21 the glass scallop Catillopecten margaritatus, 43 the bathymodioline mussels Gigantidas haimaensis 22 and Nypamodiolus samadiae, 35 the limpet Paralepetopsis polita, 44 the chiton Thermochiton xui, 36 the brittle star Histampica haimaensis, 37 and the tubeworm Sclerolinum annulatum. 34 Many others are also almost certainly undescribed species.…”
Section: Updated Species List Molecular Barcodes and Molecular Phylog...mentioning
confidence: 99%
“…The bathymodioline mussel Gigantidas haimaensis exhibited the lowest δ 13 C value (-54.3 ‰), since it harbours methaneoxidizing bacteria (MOB) in its gill. 22,58 A number of species were suggested to harbour sulphur-oxidizing bacteria (SOB), 34,35,59,60 including Acharax sp., Archivesica marissinica, "Bathymodiolus" aduloides, Nypamodiolus samadiae, Paraescarpia echinospica, Sclerolinum annulatum, and Vesicomyidae indet. Haima.…”
Section: Trophic Structurementioning
confidence: 99%
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