A new species of Nebalia (Crustacea, Leptostraca) from a hydrothermal field in Kagoshima Bay, Japan
A new species of Leptostraca, Nebalia tagiri sp. nov. is described and illustrated. This species was sampled from 200 m depth at a hydrothermal field in Wakamiko Caldera of Kagoshima Bay, Japan. Nebalia tagiri sp. nov. is different from known Nebalia species as follows: rostral len...
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2019-12-01
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doaj-771d6c0a5e8f4fe7b5ebdc28cbd1880f2020-11-25T02:12:56ZengPensoft PublishersZooKeys1313-29891313-29702019-12-0189711810.3897/zookeys.897.3706137061A new species of Nebalia (Crustacea, Leptostraca) from a hydrothermal field in Kagoshima Bay, JapanTakuma Hirata0Yoshihiro Fujiwara1Tomohiko Kikuchi2Yokohama National UniversityJapan Agency for Marine-Earth Science and TechnologyYokohama National University A new species of Leptostraca, Nebalia tagiri sp. nov. is described and illustrated. This species was sampled from 200 m depth at a hydrothermal field in Wakamiko Caldera of Kagoshima Bay, Japan. Nebalia tagiri sp. nov. is different from known Nebalia species as follows: rostral length 2.4 times as long as width; article 4 of antennule with 3–5 robust distal spines; antennular scale approximately twice as long as wide; article 3 of antenna with eight spines and nine spine-like setae along proximal half, two thin setae and six spine-like setae on external lateral face, six spines and four simple setae on distal margin; article 1 of second maxilla longer than article 2; article 2 of mandibular palp with two thin setae; exopod of pleopod 1 with 21 spines along lateral margin; furcal rami longer than combined length of pleonite 7 and telson; rounded denticles of pleonite 6 and 7; anal-plates ‘shoulder’ not distinct. Furthermore, this specimen is the first genus Nebalia found in the hydrothermal vent. The distribution and ecology of this new species is also discussed and a key to all species of Nebalia is provided. https://zookeys.pensoft.net/article/37061/download/pdf/ |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Takuma Hirata Yoshihiro Fujiwara Tomohiko Kikuchi |
spellingShingle |
Takuma Hirata Yoshihiro Fujiwara Tomohiko Kikuchi A new species of Nebalia (Crustacea, Leptostraca) from a hydrothermal field in Kagoshima Bay, Japan ZooKeys |
author_facet |
Takuma Hirata Yoshihiro Fujiwara Tomohiko Kikuchi |
author_sort |
Takuma Hirata |
title |
A new species of Nebalia (Crustacea, Leptostraca) from a hydrothermal field in Kagoshima Bay, Japan |
title_short |
A new species of Nebalia (Crustacea, Leptostraca) from a hydrothermal field in Kagoshima Bay, Japan |
title_full |
A new species of Nebalia (Crustacea, Leptostraca) from a hydrothermal field in Kagoshima Bay, Japan |
title_fullStr |
A new species of Nebalia (Crustacea, Leptostraca) from a hydrothermal field in Kagoshima Bay, Japan |
title_full_unstemmed |
A new species of Nebalia (Crustacea, Leptostraca) from a hydrothermal field in Kagoshima Bay, Japan |
title_sort |
new species of nebalia (crustacea, leptostraca) from a hydrothermal field in kagoshima bay, japan |
publisher |
Pensoft Publishers |
series |
ZooKeys |
issn |
1313-2989 1313-2970 |
publishDate |
2019-12-01 |
description |
A new species of Leptostraca, Nebalia tagiri sp. nov. is described and illustrated. This species was sampled from 200 m depth at a hydrothermal field in Wakamiko Caldera of Kagoshima Bay, Japan. Nebalia tagiri sp. nov. is different from known Nebalia species as follows: rostral length 2.4 times as long as width; article 4 of antennule with 3–5 robust distal spines; antennular scale approximately twice as long as wide; article 3 of antenna with eight spines and nine spine-like setae along proximal half, two thin setae and six spine-like setae on external lateral face, six spines and four simple setae on distal margin; article 1 of second maxilla longer than article 2; article 2 of mandibular palp with two thin setae; exopod of pleopod 1 with 21 spines along lateral margin; furcal rami longer than combined length of pleonite 7 and telson; rounded denticles of pleonite 6 and 7; anal-plates ‘shoulder’ not distinct. Furthermore, this specimen is the first genus Nebalia found in the hydrothermal vent. The distribution and ecology of this new species is also discussed and a key to all species of Nebalia is provided.
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url |
https://zookeys.pensoft.net/article/37061/download/pdf/ |
work_keys_str_mv |
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