Journal of Oceanology and Limnology

, Volume 37, Issue 4, pp 1403–1408 | Cite as

Paramonohystera weihaiensis sp. nov. (Xyalidae, Nematoda) from the intertidal beach of the Yellow Sea, China

  • Yong HuangEmail author
  • Jing Sun


A new species of free-living marine nematode of the genus Paramonohystera was described from the intertidal beach, Weihai. Paramonohystera weihaiensis sp. nov. is characterized by cervical region with a circle of long setae; tail sexual dimorphism, male tail angled dorsally with sharp narrowed of the body at the cloaca, female tail ordinary conico-cylindrical; spicules slender, 2.5 abd long; gubernaculum plate, enlarged distal end with two teeth, without apophysis; precloacal supplements absent; Four caudal gland cells obviously extended to tail. The new species differs from the other fourteen known valid congeners by the combination of its characteristics: a circle of long cervical setae, tail sexual dimorphism, spicules slender, 2.5 abd long, gubernaculum plate with a distal pair of teeth.


new species free-living marine nematode taxonomy 


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The authors are greatly thankful to Dr. HUANG Mian for his kind help in samples collection and slide making. We are sincerely grateful to three anonymous referees for providing valuable criticisms and improving on manuscript.


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Copyright information

© Chinese Society for Oceanology and Limnology, Science Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.College of Life SciencesLiaocheng UniversityLiaochengChina
  2. 2.Key Laboratory of Ecology and Biodiversity of Shandong Colleges and UniversityLiaochengChina

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