Four new species of free-living marine nematode from the sea areas of China

Jing SUN; Mian HUANG; Yong HUANG

doi:10.1007/s00343-020-0195-2

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Four new species of free-living marine nematode from the sea areas of China

Biology | Updated：2023-05-20

- Four new species of free-living marine nematode from the sea areas of China
- Journal of Oceanology and Limnology Vol. 39, Issue 4, Pages: 1547-1558(2021)
- Affiliations：
  
  1.College of Life Sciences, Liaocheng University, Liaocheng 252059, China
  2.Department of Marine Organism Taxonomy and Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
  3.University of Chinese Academy of Sciences, Beijing 100049, China
- Author bio：
  
  Yong HUANG, E-mail:huangy@lcu.edu.cn
- Funds：
- DOI：10.1007/s00343-020-0195-2
  CLC：
- Received：12 May 2020，
  
  Accepted：17 June 2020，
  
  Online First：13 August 2020，
  
  Published：2021-07
- Accepted：
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Jing SUN, Mian HUANG, Yong HUANG. Four new species of free-living marine nematode from the sea areas of China[J]. Journal of Oceanology and Limnology, 2021, 39(4): 1547-1558.
DOI：

Jing SUN, Mian HUANG, Yong HUANG. Four new species of free-living marine nematode from the sea areas of China[J]. Journal of Oceanology and Limnology, 2021, 39(4): 1547-1558. DOI： 10.1007/s00343-020-0195-2.

摘要

Abstract

Two new species of genus

Diplopeltoides

Gerlach

1962

Gerlach

1962

and two new species of genus

Minolaimus

Vitiello

1970

Vitiello

1970

were described based on recently collected specimens from marine sediments of the South China Sea and the East China Sea

respectively.

Diplopeltoides conoicaudatus

sp. nov. is characterized by annulated cuticle; tiny terminal buccal cavity; short cephalic setae about 2-μm long; loop-shaped amphideal fovea without sclerotized plate; slender and arcuate spicules; triangular gubernaculum possessing a small dorso-caudal apophysis; female with two opposed and reflexed ovaries.

Diplopeltoides longifoveatus

sp. nov. is characterized by its papilliform cephalic sensilla; long and narrow amphideal fovea with fine transverse striations; inverse S-shaped spicules with a dorsally bent manubrium; gubernaculum with dorso-caudal apophysis; cylindrical tail with round terminal end.

Minolaimus multisupplementatus

sp. nov. is characterized by cuticle with lateral differentiation of three longitudinal rows of large dots

spiral amphideal fovea with seven turns

pharynx cylindrical without posterior bulb

spicules arcuated with central lamella

gubernaculum arcuate and parallel to spicule

without dorso-caudal apophysis

a papilliform and 29 cup-shaped precloacal supplement; tail conical with long flagelliform portion.

Minolaimus apicalis

sp. nov. is characterized by cuticle with lateral differentiation of three longitudinal rows of larger dots from the middle of pharynx to the conical portion of tail and a longitudinal row of pores in the pharyngeal region and precloacal region; spiral amphidial fovea with four turns and close to anterior end; pharynx cylindrical with oval posterior bulb

spicules arcuated and proximal end bent dorsally

gubernaculum with a broad curved dorsal apophysis; two sucked-like and six cup-shaped cuticularized precloacal supplements; tail conico-cylindrical with slightly enlarged tip. Updated keys to species of

Diplopeltoides

and

Minolaimus

were provided.

关键词

Keywords

references

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Dept. of Oceanography Ocean University of Qingdao

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