Kou Q I, Poore Gary C B, Li Xinzheng
Institute of Oceanology; Chinese Academy of Sciences; Qingdao; Shandong 266071; China; Laboratory for Marine Biology and Biotechnology; Laoshan Laboratory; Qingdao; Shandong 266237; China; University of Chinese Academy of Sciences; Beijing 100049; China.
Museums Victoria; Melbourne; VIC 3001; Australia.
Zootaxa. 2024 Oct 25;5529(2):381-395. doi: 10.11646/zootaxa.5529.2.9.
A new species of ghost shrimp, Ctenocheles sinicus, is described based on specimens recently collected from Taiwan Strait, the East China Sea, at a depth of 50 m. The new species is characterized by: the dorsally unarmed rostrum attaining one-third the length of the eyestalks; the rounded suborbital angle of the carapace; maxillipeds 2 and 3 each with a short exopod; the merus and ischium of pereopod 1 being unarmed along the lower margin; the major cheliped with fingers twice as long as the palm; the ischium of pereopod 2 armed with prominent spiniform setae along the lower margin; and the rounded anterodistal angle of uropodal exopod. The morphological differences between the new species and other congeners are discussed and a key to the species of Ctenocheles Kishinouye, 1926 is provided. The molecular analyses show significant differences between the new species and two populations of its sympatric congener, Ctenocheles balssi Kishinouye, 1926. The new species is justified and an individual from the Philippines previously identified as C. balssi probably represents an undescribed species.
基于最近在中国台湾海峡、东海50米深处采集的标本，描述了一种新的幽灵虾——中华栉螯虾（Ctenocheles sinicus）。新物种的特征如下：背侧无武装的额角达到眼柄长度的三分之一；头胸甲的眶下角呈圆形；第二和第三颚足各有一个短的外肢；第一步足的 merus 和 ischium 在下缘无武装；大螯足的指节长度是掌节的两倍；第二步足的 ischium 在下缘有突出的刺状刚毛；尾足外肢的前远端角呈圆形。讨论了新物种与其他同属物种之间的形态差异，并提供了1926年栉螯虾属（Ctenocheles Kishinouye）物种的检索表。分子分析表明，新物种与其同域分布的同属物种——1926年的巴氏栉螯虾（Ctenocheles balssi Kishinouye）的两个种群之间存在显著差异。新物种是合理的，之前被鉴定为巴氏栉螯虾的来自菲律宾的个体可能代表一个未描述的物种。
