Wang Weina, Sui Jixing, Kou Qi, Li Xin-Zheng
Department of Marine Organism Taxonomy and Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China.
University of Chinese Academy of Sciences, Beijing, China.
PeerJ. 2020 Jul 16;8:e9491. doi: 10.7717/peerj.9491. eCollection 2020.
Specimens of the genus (Annelida, Terebellidae) deposited in the Marine Biological Museum of the Chinese Academy of Sciences (MBMCAS) together with materials newly collected from China seas were examined. Based on morphological comparisons and molecular analysis, some specimens collected from the coasts of Shandong province and Guangxi province were confirmed as two new species respectively ( sp. n. and sp. n.). Morphologically, sp. n. is distinguished from previously known species of this genus by having seven equal sized ventral shields, with length five times the width; this species was retrieved as sister to the clades of Moore, 1903 and Hutchings, 1990 in the phylogenetic tree, which was reconstructed based on mitochondrial COI gene. sp. n. differs from congeners by the large size of its first pair of branchiae with a thick main stem and about 18 dendritic branches arranged in two levels. A key to identifying species found in Chinese seas is given.
对存放在中国科学院海洋生物博物馆（MBMCAS）中的（环节动物门，蛰龙介科）标本以及从中国海域新采集的材料进行了检查。基于形态学比较和分子分析，从山东省和广西壮族自治区海岸采集的一些标本分别被确认为两个新的物种（新物种1和新物种2）。在形态上，新物种1与该属先前已知的物种的区别在于有七个大小相等的腹盾，其长度是宽度的五倍；在基于线粒体COI基因重建的系统发育树中，该物种被检索为1903年的摩尔蛰龙介属和1990年的哈钦斯蛰龙介属分支的姐妹种。新物种2与其同属物种的不同之处在于其第一对鳃的尺寸较大，主茎粗壮，约有18个树枝状分支分两层排列。给出了一个识别中国海域发现的蛰龙介属物种的检索表。
