| 摘要: |
| 由于部分囊舌目物种存在较大程度的种内变异, 我国早期基于形态学的囊舌目研究存在种名鉴定错误、同物异名等现象。为解决我国沿海囊舌目物种种名使用混乱的问题, 结合比较形态学和分子系统学技术手段, 对采自山东青岛、浙江舟山、海南陵水的囊舌目样品进行了外部形态和齿舌扫描电镜的检视, 并基于COI基因进行系统发育树和遗传距离分析, 对国内记录的深绿海天牛Elysia atroviridis Baba, 1955重新进行了分类学描述; 发现华丽海天牛Elysia ornata (Swainson, 1840)应暂定为三边海天牛Elysia marginata (Pease, 1871); 指状棍螺Placida dendritica (Alder & Hancock, 1843)是马场棍螺Placida babai Ev. Marcus, 1982的误定。回顾了以上几种囊舌目物种及其相似物种的分类学研究历程, 对E. atroviridis、E. marginata和P. babai进行了分子系统学和形态学研究, 并为解决这三种囊舌目物种的分类存疑问题提供了新的材料和方法。 |
| 关键词: 囊舌目 物种界定 Elysia atroviridis Elysia marginata Placida babai |
| DOI：10.11693/hyhz20221000251 |
| 分类号: |
| 基金项目:海南省科技计划三亚崖州湾科技城联合项目, 320LH019号; 国家自然科学基金项目, 31772414 号; 中央高校基本科研业务费项目, 201964001 号。 |
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| REVISION OF THREE SPECIES OF SACOGLOSSA (GASTROPODA, HETEROBRANCHIA) FROM CHINA |
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WEI Jing-Cheng1, KONG Ling-Feng1,2,3
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1.Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China;2.Sanya Oceanographic Institution, Ocean University of China, Sanya 572000, China;3.Laboratory for Marine Fisheries Science and Food Production Processes, Laoshan Laboratory, Qingdao 266237, China
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| Abstract: |
| To solve the problems of mistaken identification and synonym that caused by the intraspecific variation in some Sacoglossa sea slugs in early morphology-based studies on this taxon in China, comparative morphology and molecular methods were used to examine the external morphology and radula as well as the phylogenetic tree and distance analyses on the specimens collected from Qingdao of Shandong, Zhoushan of Zhejiang, and Lingshui of Hainan, China. Results show that the domestic record of Elysia viridis (Montagu, 1804) was the misidentification of Elysia atroviridis Baba, 1955, while Elysia ornata (Swainson, 1840) should be referred to as Elysia marginata (Pease, 1871) temporarily; Placida dendritica (Alder & Hancock, 1843) was a the misidentification of Placida babai Ev. Marcus, 1982. In addition, the taxonomic status of the Sacoglossa species mentioned above was reviewed, and revisions were made to E. viridis, E. marginata, and P. babai. This study provided new materials to support the placement of these Indo-Pacific widespread species. |
| Key words: Sacoglossa species delimitation Elysia atroviridis Elysia marginata Placida babai |
