A new species of the genus Smacigastes Ivanenko & Defaye, 2004 (Tegastidae, Harpacticoida, Copepoda) from the Onnuri Vent Field in the Indian Ocean SCIE

Cited 1 time in WEB OF SCIENCE
Title
A new species of the genus Smacigastes Ivanenko & Defaye, 2004 (Tegastidae, Harpacticoida, Copepoda) from the Onnuri Vent Field in the Indian Ocean
Author(s)
Kim, Jong Guk; Lee, Jimin
KIOST Author(s)
Lee, Ji Min(이지민)
Alternative Author(s)
김종국; 이지민
Publication Year
2020-10
Abstract
The genus Smacigastes Ivanenko & Defaye, 2004 (Harpacticoida, Copepoda) is the most primitive genus in the family Tegastidae Sars, 1904, occurring in deep-sea chemosynthetic environments, such as hydrothermal vents, cold seeps, whale falls and wood falls. Our exploration of the Onnuri Vent Field, the sixth active hydrothermal vent system in the Central Indian Ridge, resulted in the discovery of a new species in the genus Smacigastes. A detailed morphological analysis of S. pumila sp. nov. reveals that it most resembles S. barti Gollner, Ivanenko & Martinez Arbizu, 2008, described from a hydrothermal vent in the East Pacific Ridge; the new species can be distinguished from the existing species by the 8-segmented female antennule, the absence of an abexopodal seta on the antennary basis, the mandibular exopod represented by a single seta and the exopod of the first leg with five setae. This is the first record of Smacigastes in the Indian Ocean. A dichotomous key to species of the genus Smacigastes worldwide is provided.
ISSN
1860-0743
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/40242
DOI
10.3897/zse.96.54507
Bibliographic Citation
Zoosystematics and Evolution, v.96, no.2, pp.699 - 714, 2020
Keywords
deep sea; dichotomous key; hydrothermal vent; meiofauna; northern Central Indian Ridge
Type
Article
Language
English
Document Type
Article
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