Tran Duc Luong, Chang Cheon Young
Department of Aquatic Ecology, Institute of Ecology and Biological Resources, Academy of Science and Technology, 18, Hoang Quoc Viet Rd, Caugiay District, Hanoi, Vietnam Institute of Ecology and Biological Resources, Academy of Science and Technology Hanoi Vietnam.
Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Rd, Cau Giay District, Hanoi, Vietnam Graduate University of Science and Technology, Vietnam Academy of Science and Technology Hanoi Vietnam.
Zookeys. 2020 Oct 22;977:1-23. doi: 10.3897/zookeys.977.55040. eCollection 2020.
A new species, , was found in a brackish pool within an anchialine cave in Tra Ban Island in Bai Tu Long Bay, north Vietnam. The new species is clearly distinguished from all the six species currently known in the genus by the following unique characteristics: reduction of the septum between gonopores; narrow and pointed rostrum; basal segment of mandibular palp armed with three setae; maxillule without seta on the basal exite, and exopod with 11 setae; second and third endopodal segments of the maxilliped bearing three setae each; exopod of male right leg 5 2-segmented, with two strong and one vestigial spines on the outer margin of the distal segment; and last exopodal segment of female leg 5 bearing only one spine on the outer margin. We provide a description of the new species, along with detailed illustrations and scanning electron microscopy photographs. The identification key to species is updated as well. This is the first record of the genus from Vietnam.
在越南北部白图龙湾茶斑岛一个咸淡水池塘中的一个沿岸洞穴里发现了一个新物种， 。该新物种通过以下独特特征与该属目前已知的所有六个物种明显区分开来：生殖孔之间的隔膜减少；吻部狭窄且尖；下颌触须基部节段有三根刚毛；小颚基部外叶无刚毛，外肢有11根刚毛；颚足的第二和第三内肢节段各有三根刚毛；雄性右第5步足外肢分两节，远端节段外缘有两根强壮的和一根退化的刺；雌性第5步足最后一个外肢节段外缘仅具一根刺。我们提供了该新物种的描述，以及详细的插图和扫描电子显微镜照片。该属物种的检索表也进行了更新。这是该属在越南的首次记录。
