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热带海洋学报

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西沙群岛鞭柳珊瑚科（八放珊瑚纲：硬软珊瑚目）物种多样性及中国海域四个新纪录种*

陈美娟1, 郑远海1, 游力1, 夏非2, 莫敏婷1, 3, 4, 刘昕明1, 3, 4*
  

  1. 1. 广西中医药大学海洋药物研究院, 广西南宁 530022;


    2. 东京大学, 新领域创成科学研究科, 先端生命科学专攻, 日本 千叶 277-8561;


    3. 广西海洋药物重点实验室, 广西南宁 530022;


    4. 海洋中药资源高效利用广西高校工程研究中心, 广西南宁 530022


  • 收稿日期:2026-04-23 修回日期:2026-06-18 接受日期:2026-06-30
  • 通讯作者: 刘昕明
  • 基金资助:
    广西自然科学基金项目(2025GXNSFAA069154); 广西海洋药物重点实验室能力强化建设项目资助(桂科LT2600640033)

Species Diversity of the Family Ellisellidae (Octocorallia: Scleralcyonacea) in the Xisha Islands, with Four Newly Recorded Species in China

CHEN Meijuan1, ZHENG Yuanhai1, YOU Li1, XIA Fei2, MO Minting1,3,4, LIU Xinming1,3,4*    

  1. 1. Institute of Marine Drugs, Guangxi University of Chinese Medicine, Nanning 530022, China


    2. Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Chiba 277‑8561, Japan


    3. Guangxi Key Laboratory of Marine Drugs, Nanning 530022, China


    4. University Engineering Research Center of High‑efficient Utilization of Marine Traditional Chinese Medicine Resources, Nanning 530022, China


  • Received:2026-04-23 Revised:2026-06-18 Accepted:2026-06-30
  • Supported by:

    Guangxi Natural Science Foundation Project(2025GXNSFAA069154);Guangxi Science and Technology Program (LT2600640033)

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摘要： 西沙群岛是中国南海珊瑚礁生态系统的重要分布区, 但该海域八放珊瑚, 尤其是鞭柳珊瑚科物种的系统性分类研究仍相对薄弱。2024—2025年, 本研究在西沙群岛海域通过水肺潜水采集鞭柳珊瑚科样品, 结合形态学观察与线粒体MutS 同源基因(mitochondrial MutS homolog, mtMutS)的系统发育分析, 对其物种多样性进行了研究。共采集鞭柳珊瑚科样品20株, 鉴定为4属7种, 其中角叶鞭柳珊瑚(Ellisella ceratophyta (Linnaeus, 1758))、多尔夫氏鞭柳珊瑚(Ellisella dollfusi (Stiasny, 1938))、夜光鞭柳珊瑚(Ellisella nuctenea Grasshoff, 1999)和棘状垂鞭柳珊瑚(Heliania spinescens Gray, 1859)为中国海域新纪录种。本文对上述4个物种进行了详细的形态学描述, 并结合历史文献记录确认西沙群岛海域目前已知鞭柳珊瑚科5属8种。本研究完善了中国海域鞭柳珊瑚科的物种记录和形态分类资料, 表明西沙群岛是中国南海鞭柳珊瑚科物种多样性较为集中的区域之一; 线粒体mtMutS基因可为部分样品鉴定提供辅助参考, 但该科部分类群的属级界限仍需结合更多样品和分子标记进一步研究。

关键词: 八放珊瑚, 鞭柳珊瑚科, 新纪录种, 西沙群岛, mtMutS

Abstract: The Xisha Islands constitute an important coral reef region in the South China Sea, but systematic taxonomic studies of octocorals in this area, especially species of the family Ellisellidae, remain relatively limited. During 2024—2025, specimens of Ellisellidae were collected by self-contained underwater breathing apparatus (SCUBA) diving from the waters of the Xisha Islands, and their species diversity was investigated based on morphological observations and phylogenetic analysis of the mitochondrial MutS homolog (mtMutS) gene. A total of 20 specimens of Ellisellidae were collected and identified as four genera and seven species, among which Ellisella ceratophyta (Linnaeus, 1758), Ellisella dollfusi (Stiasny, 1938), Ellisella nuctenea Grasshoff, 1999, and Heliania spinescens Gray, 1859 are newly recorded from Chinese waters. Detailed morphological descriptions are provided for these four species, and, together with historical records, five genera and eight species of Ellisellidae are currently known from the waters of the Xisha Islands. This study improves the species records and morphological taxonomic data of Ellisellidae in Chinese waters, indicating that the Xisha Islands represent one of the areas with relatively concentrated species diversity of Ellisellidae in the South China Sea. The mitochondrial mtMutS gene can provide auxiliary evidence for the identification of some specimens, but the generic boundaries of some groups within this family still require further study based on additional samples and molecular markers.

Key words: Octocorallia, Ellisellidae, newly recorded species, Xisha Islands, mtMutS