Huang Ming-Chih, Kawai Tadashi
National University of Tainan, Tainan, Taiwan National University of Tainan Tainan Taiwan.
Central Fisheries Research Institution, Hokkaido, Japan Central Fisheries Research Institution Hokkaido Japan.
Biodivers Data J. 2025 Mar 31;13:e144238. doi: 10.3897/BDJ.13.e144238. eCollection 2025.
sp. nov., a medium-sized supergiant , is described from specimens obtained at Zhengbin fishing port in Keelung, Taiwan and had been caught in the water near Paracel Islands, South China Sea. Due to its similar shape to , this species has often been mistaken for juveniles or immatures of by fishermen working in this area. Species of can be distinguished morphologically and genetically. The differences from are in the shorter body, clypeus shape, uropod endopod and gene sequence. The difference from is in the body shape, clypeus shape, hook number of maxilliped endite and spines number of maxilulla. Based on the morphological and genetic data results, the specimen is a hitherto undescribed species. The samples were collected as a bycatch species in the deep-sea bottom trawl fishery. The distribution area and depth of this new species and population size are still unclear.
sp. nov. is the third supergiant discovered in the South China Sea after and . Its remarkable feature is its short body length and sub-parallel shape. In addition, it is different from and in features such as clypeus shape, number of maxillula keratinised spine and pleotelson spine almost straight. Phylogenetic and barcoding gap analyses confirm that sp. nov. is not the same species as . Many morphological differences also indicate that it should be a different species from . sp. nov. may be an intermediate species between giant and supergiant, possessing characteristics of both categories, which can increase researchers' understanding of biodiversity.
[物种名称]新种，一种中等体型的超级巨型生物，是根据在台湾基隆正滨渔港采集的标本描述的，该标本捕获于中国南海西沙群岛附近海域。由于其外形与[其他物种名称]相似，该区域的渔民常将其误认为是[其他物种名称]的幼体或未成熟个体。[物种名称]的种类可通过形态学和遗传学进行区分。与[其他物种名称1]的区别在于身体较短、额形状、尾足内肢和基因序列。与[其他物种名称2]的区别在于身体形状、额形状、颚足内叶的钩数和小颚的刺数。根据形态学和遗传学数据结果，该标本是一个迄今未被描述的物种。这些样本是在深海底拖网渔业中作为兼捕物种采集的。该新物种的分布区域、深度和种群规模仍不清楚。
[物种名称]新种是继[其他物种名称1]和[其他物种名称2]之后在南海发现的第三种超级巨型[物种所属类别]。其显著特征是体长较短且呈亚平行形状。此外，它在额形状、小颚角质化刺的数量和 pleotelson 刺几乎笔直等特征上与[其他物种名称1]和[其他物种名称2]不同。系统发育和条形码间隙分析证实[物种名称]新种与[其他物种名称1]不是同一物种。许多形态学差异也表明它应该是与[其他物种名称2]不同的物种。[物种名称]新种可能是巨型和超级巨型之间的中间物种，兼具这两类的特征，这可以增加研究人员对[物种所属类别]生物多样性的理解。
