A new species of Gaillardiellus Guinot, 1976 (Crustacea, Brachyura, Xanthidae) from the coral reefs of the South China Sea

A new xanthid species of Gaillardiellus Guinot, 1976, is described from the coral reefs of the Xisha and Nansha Islands in the South China Sea. The new species, Gaillardiellus magiruber sp. nov., closely resembles G. rueppellii (Krauss, 1843) but can be distinguished mainly by its closer proximity o...

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Main Authors: Yuan Ziming, Jiang Wei, Sha Zhongli
Format: Article
Language:English
Published: Pensoft Publishers 2025-04-01
Series:ZooKeys
Online Access:https://zookeys.pensoft.net/article/144026/download/pdf/
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author Yuan Ziming
Jiang Wei
Sha Zhongli
author_facet Yuan Ziming
Jiang Wei
Sha Zhongli
author_sort Yuan Ziming
collection DOAJ
description A new xanthid species of Gaillardiellus Guinot, 1976, is described from the coral reefs of the Xisha and Nansha Islands in the South China Sea. The new species, Gaillardiellus magiruber sp. nov., closely resembles G. rueppellii (Krauss, 1843) but can be distinguished mainly by its closer proximity of the outer orbital angle and anterolateral margin, which lacks an accessory lobe, a broader and non-protruding front, and notable differences in live coloration and size. Molecular analysis of mitochondrial cytochrome c oxidase I (COI) sequences further corroborates the validity of this new species. An updated identification key for Gaillardiellus is provided.
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id doaj-art-76beb2b9da6b4eb9a4f5ac88522a8c3d
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publisher Pensoft Publishers
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series ZooKeys
spelling doaj-art-76beb2b9da6b4eb9a4f5ac88522a8c3d2025-08-20T03:05:18ZengPensoft PublishersZooKeys1313-29702025-04-01123411710.3897/zookeys.1234.144026144026A new species of Gaillardiellus Guinot, 1976 (Crustacea, Brachyura, Xanthidae) from the coral reefs of the South China SeaYuan Ziming0Jiang Wei1Sha Zhongli2Chinese Academy of SciencesUniversity of Chinese Academy of SciencesChinese Academy of SciencesA new xanthid species of Gaillardiellus Guinot, 1976, is described from the coral reefs of the Xisha and Nansha Islands in the South China Sea. The new species, Gaillardiellus magiruber sp. nov., closely resembles G. rueppellii (Krauss, 1843) but can be distinguished mainly by its closer proximity of the outer orbital angle and anterolateral margin, which lacks an accessory lobe, a broader and non-protruding front, and notable differences in live coloration and size. Molecular analysis of mitochondrial cytochrome c oxidase I (COI) sequences further corroborates the validity of this new species. An updated identification key for Gaillardiellus is provided.https://zookeys.pensoft.net/article/144026/download/pdf/
spellingShingle Yuan Ziming
Jiang Wei
Sha Zhongli
A new species of Gaillardiellus Guinot, 1976 (Crustacea, Brachyura, Xanthidae) from the coral reefs of the South China Sea
ZooKeys
title A new species of Gaillardiellus Guinot, 1976 (Crustacea, Brachyura, Xanthidae) from the coral reefs of the South China Sea
title_full A new species of Gaillardiellus Guinot, 1976 (Crustacea, Brachyura, Xanthidae) from the coral reefs of the South China Sea
title_fullStr A new species of Gaillardiellus Guinot, 1976 (Crustacea, Brachyura, Xanthidae) from the coral reefs of the South China Sea
title_full_unstemmed A new species of Gaillardiellus Guinot, 1976 (Crustacea, Brachyura, Xanthidae) from the coral reefs of the South China Sea
title_short A new species of Gaillardiellus Guinot, 1976 (Crustacea, Brachyura, Xanthidae) from the coral reefs of the South China Sea
title_sort new species of gaillardiellus guinot 1976 crustacea brachyura xanthidae from the coral reefs of the south china sea
url https://zookeys.pensoft.net/article/144026/download/pdf/
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