Lee Ha-Eun, Lee Geon Hyeok, Min Gi-Sik
Department of Biological Sciences and Bioengineering, Inha University, Incheon, Republic of Korea Department of Biological Sciences and Bioengineering, Inha University Incheon Republic of Korea.
Research Institute of EcoScience, Ewha Womans University, Seoul, Republic of Korea Research Institute of EcoScience, Ewha Womans University Seoul Republic of Korea.
Biodivers Data J. 2024 Oct 16;12:e129526. doi: 10.3897/BDJ.12.e129526. eCollection 2024.
Ehlers, 1897 is a genus of Opheliidae characterised by the body divided into three distinct regions, modified parapodia in chaetiger 10 and a ventral groove restricted to the posterior half of the body. To date, 18 species have been described in the genus. Amongst them, six species have been recorded in northeast Asia.
A new species, sp. nov., was discovered in the intertidal zone of the Yellow Sea, South Korea. This is the first species report from the Yellow Sea. This new species is closely related to (Hartman, 1938) from California and Okuda, 1936 from Japan in having pectinate branchiae. However, the new species can be distinguished from the two species by the unique combination of the following characteristics: 15 pairs of wrinkled pectinate branchiae with 12-15 filaments at best development and a foliaceous mid-ventral plate in the pygidium instead of one or two thick ventral cirri. Detailed descriptions and illustrations of sp. nov. are provided. Sequences of the mitochondrial cytochrome c oxidase subunit I (COI), nuclear 18S ribosomal DNA (rDNA) and 28S rDNA of the new species were determined and analysed.
埃勒斯虫属（Ehlers，1897）是叶须虫科的一个属，其特征是身体分为三个明显的区域，第10刚节有变形的鳃足，腹沟仅限于身体后半部。迄今为止，该属已描述了18个物种。其中，有6个物种在东北亚被记录。
在韩国黄海潮间带发现了一个新物种，新种。这是来自黄海的首个该物种报告。这个新物种与来自加利福尼亚的（哈特曼，1938）以及来自日本的奥库达虫（Okuda，1936）在具有栉状鳃方面密切相关。然而，新物种可以通过以下独特的特征组合与这两个物种区分开来：15对褶皱栉状鳃，在发育最佳时具有12 - 15条鳃丝，以及在尾节有一个叶状的腹中部板，而不是一或两条粗壮的腹须。提供了新种的详细描述和图示。测定并分析了新物种的线粒体细胞色素c氧化酶亚基I（COI）、核18S核糖体DNA（rDNA）和28S rDNA的序列。
