TY - JOUR
T1 - Oncholaimus langhovdensis sp. nov. (Nematoda
T2 - Enoplea: Oncholaimida), a new species of free-living marine nematode from Langhovde, Dronning Maud Land, East Antarctica
AU - Shimada, Daisuke
AU - Suzuki, Atsushi C.
AU - Tsujimoto, Megumu
AU - Imura, Satoshi
AU - Kakui, Keiichi
N1 - Funding Information:
We wish to thank Mr. Jun Hirano (Ministry of the Environment), Mr. Ryo Fujiwara (the University of Tokyo), and Mr. Akihiro Suyama (the University of Tokyo) for their assistance in sampling, Dr. Hiroshi Kajihara (Hokkaido University) for providing the facilities for microscopic observation and molecular work, and Mr. Akiho Shibata (Hokkaido University) for helping in molecular experiments. We also thank all members of JARE 56 and the captain and crew of the icebreaker Shirase II for their support. This study is an outcome of a National Institute of Polar Research (NIPR) workshop held on November 31 and December 1, 2015. This study was supported in part by a grant to the first author from the Keio Gijuku Academic Development Funds.
Funding Information:
ronment), Mr. Ryo Fujiwara (the University of Tokyo), and Mr. Akihiro Suyama (the University of Tokyo) for their assistance in sampling, Dr. Hiroshi Kajihara (Hokkaido University) for providing the facilities for microscopic observation and molecular work, and Mr. Akiho Shibata (Hokkaido University) for helping in molecular experiments. We also thank all members of JARE 56 and the captain and crew of the icebreaker Shirase II for their support. This study is an outcome of a National Institute of Polar Research (NIPR) workshop held on November 31 and December 1, 2015. This study was supported in part by a grant to the first author from the Keio Gijuku Academic Development Funds.
Publisher Copyright:
© 2017 The Japanese Society of Systematic.
Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2017/12/1
Y1 - 2017/12/1
N2 - A new species of free-living marine nematode, Oncholaimus langhovdensis sp. nov., is described from the intertidal zone of Langhovde (near Syowa Station), Dronning Maud Land, East Antarctica. It closely resembles 11 congeners in the conico-cylindrical tail shape present in males and amphid and excretory pore positions, short spicules, and Demanian system structure present in females. However, it mainly differs from these congeners in body size, de Man's ratios, tail length and shape, and Demanian system structure present in females. Oncholaimus langhovdensis sp. nov. also resembles four congeners known only by females, but it can be distinguished from them based on the tail length and uvette position. In addition to O. langhovdensis sp. nov., two undescribed species (Tripyloididae gen. sp. and Axonolaimidae gen. sp.) and four unidentified species (Sphaerolaimus sp., Oncholaimidae gen. sp., Comesomatidae gen. sp., and Chromadorida fam. gen. sp.) were found from the same locality.
AB - A new species of free-living marine nematode, Oncholaimus langhovdensis sp. nov., is described from the intertidal zone of Langhovde (near Syowa Station), Dronning Maud Land, East Antarctica. It closely resembles 11 congeners in the conico-cylindrical tail shape present in males and amphid and excretory pore positions, short spicules, and Demanian system structure present in females. However, it mainly differs from these congeners in body size, de Man's ratios, tail length and shape, and Demanian system structure present in females. Oncholaimus langhovdensis sp. nov. also resembles four congeners known only by females, but it can be distinguished from them based on the tail length and uvette position. In addition to O. langhovdensis sp. nov., two undescribed species (Tripyloididae gen. sp. and Axonolaimidae gen. sp.) and four unidentified species (Sphaerolaimus sp., Oncholaimidae gen. sp., Comesomatidae gen. sp., and Chromadorida fam. gen. sp.) were found from the same locality.
KW - Benthos
KW - Meiofauna
KW - Oncholaimid
KW - Oncholaimidae
KW - Syowa Station
KW - Taxonomy
UR - http://www.scopus.com/inward/record.url?scp=85037043792&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85037043792&partnerID=8YFLogxK
U2 - 10.12782/specdiv.22.151
DO - 10.12782/specdiv.22.151
M3 - Article
AN - SCOPUS:85037043792
VL - 22
SP - 151
EP - 159
JO - Species Diversity
JF - Species Diversity
SN - 1342-1670
IS - 2
ER -