Lee Jimin, Kim Dongsung, Kim Il-Hoi
Marine Ecosystem Research Center, Korea Institute of Ocean Science Technology, Busan 49111, Korea..
Zootaxa. 2020 Apr 3;4759(3):zootaxa.4759.3.1. doi: 10.11646/zootaxa.4759.3.1.
Eight species of copepods belonging to the family Dirivultidae (Siphonostomatoida) are described from deep-water hydrothermal vent fields on the Central Indian Ridge in the Indian Ocean. Aphotopontius limatulus Humes, 1987, previously known only from the East Pacific, is included. The other seven species are new, as follows: Aphotopontius kiost n. sp., A. muricatus n. sp., Benthoxynus constrictus n. sp., Stygiopontius spinifer n. sp., S. horridus n. sp., S. geminus n. sp., and S. quadripaxillifer n. sp. The copepodid I stage of S. horridus n. sp. is also described. This is the first record on copepods living on hydrothermal vent fields in the Indian Ocean.
本文描述了印度洋中印度洋中央海岭深水热液喷口区的8种属于Dirivultidae科（管口水蚤目）的桡足类动物。其中包括此前仅在东太平洋发现过的1987年命名的Humes氏光额水蚤。另外7个物种为新物种，分别如下：基奥斯特光额水蚤新种、具瘤光额水蚤新种、缢缩底栖水蚤新种、具刺深海水蚤新种、粗糙深海水蚤新种、孪生深海水蚤新种和四叶深海水蚤新种。还描述了粗糙深海水蚤新种的第一期桡足幼体。这是关于生活在印度洋热液喷口区桡足类动物的首次记录。
