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A new species of Nebalia (Crustacea, Leptostraca) from a hydrothermal field in Kagoshima Bay, Japan.


ABSTRACT: 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.

SUBMITTER: Hirata T 

PROVIDER: S-EPMC6914716 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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A new species of <i>Nebalia</i> (Crustacea, Leptostraca) from a hydrothermal field in Kagoshima Bay, Japan.

Hirata Takuma T   Fujiwara Yoshihiro Y   Kikuchi Tomohiko T  

ZooKeys 20191209


A new species of Leptostraca, <i>Nebalia tagiri</i> <b>sp. nov.</b> is described and illustrated. This species was sampled from 200 m depth at a hydrothermal field in Wakamiko Caldera of Kagoshima Bay, Japan. <i>Nebalia tagiri</i> <b>sp. nov.</b> is different from known <i>Nebalia</i> 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  ...[more]

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