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Descriptions of Deontolaimus holovachovi sp. nov. and Campylaimus zhoui sp. nov. from Chinese sea areas

Published online by Cambridge University Press:  02 June 2021

Yang Lu ,
Liping Zhao  and
Yong Huang Open the ORCID record for Yong Huang [Opens in a new window]
Yang Lu
Affiliation:
College of Life Sciences, Liaocheng University, Liaocheng252059, P. R. China
Liping Zhao
Affiliation:
School of Biological and Environmental Engineering of Binzhou College, Binzhou, 256603, P. R. China
Yong Huang*
Affiliation:
College of Life Sciences, Liaocheng University, Liaocheng252059, P. R. China
*
Author for correspondence: Yong Huang, E-mail: huangy@lcu.edu.cn
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Abstract

Two new species of free-living marine nematode discovered from an intertidal sandy beach in the Bohai Sea and from a sublittoral region in the East China Sea are described. Deontolaimus holovachovi sp. nov. is characterized by short cephalic setae (2.5–3 μm long); ventrally-unispiral amphidial fovea; excretory pore located at the level with nerve ring; lateral alae present; two pairs of lateral cervical setae present; arcuate spicules 1.5–1.6 cloacal body diameter long, with the proximal half swollen and proximal end hooked, the distal half narrow; gubernaculum with dorso-caudal apophysis; postcloacal sensilla present in males; a midventral caudal papilla with a short seta situated at posterior third of tail length. Campylaimus zhoui sp. nov. is characterized by loop-shaped amphid with very long ventral limb extending along pharyngeal region to level of anterior part of intestine, 4.7–5.2 times the length of dorsal limb; excretory pore opening posterior to the pharyngo-intestinal junction; spicules symmetrical, slightly arcuate without proximal capitulum; gubernaculum with small dorsal apophysis; precloacal supplements absent.

Keywords

Bohai SeaEast China Seafree-living marine nematodetaxonomy
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 101 , Issue 2 , March 2021 , pp. 265 - 270
Copyright
Copyright © The Author(s), 2021. Published by Cambridge University Press on behalf of Marine Biological Association of the United Kingdom

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