Novikov Aleksandr, Sharafutdinova Dayana, Chertoprud Elena
Kazan Federal University, Kremlyovskaya St. 18, 420008 Kazan, Russia Kazan Federal University Kazan Russia.
Department of Hydrobiology, Biological Faculty, M.V. Lomonosov Moscow State University, Leninskie Gory, Moscow 119991, Russia M.V. Lomonosov Moscow State University Moscow Russia.
Zookeys. 2023 Jan 5;1138:89-141. doi: 10.3897/zookeys.1138.90580. eCollection 2023.
Two new species of Chappuis, 1929 from the Russian Arctic from the species group are described: and A complete morphological comparison of the new species with the type species (Claus, 1863) was carried out. Significant interspecific differences were shown at the level of microcharacters, such as integumental sensillae and pores, ornamentation of segments of mouthparts and swimming legs, and pores on swimming legs. A significant correlation has also been shown in the shape of the caudal rami of the females and the antennules of the males, which is likely caused by an evolutionary sexual arms race. and have a similar structure of caudal rami, but completely different male antennules, which may indicate a convergent origin of modifications and highlights the importance of depicting male antennules in the species descriptions.
描述了1929年来自俄罗斯北极地区的Chappuis属物种组的两个新物种： 和 。对新物种与模式种（Claus，1863）进行了完整的形态学比较。在微观特征水平上显示出显著的种间差异，如体表感觉毛和小孔、口器和游泳足各节的纹饰以及游泳足上的小孔。在雌性尾叉和雄性小触角的形状上也显示出显著的相关性，这可能是由进化中的性别军备竞赛引起的。 和 具有相似的尾叉结构，但雄性小触角完全不同，这可能表明形态变化的趋同起源，并突出了在物种描述中描绘雄性小触角的重要性。
