Theristus coralis sp. n. and Thalassomonhystera gracilima sp. n. (Nematoda, Monhysterida) from coral reef off the coast of Vietnam

Authors

  • Phan Ke Long Vietnam National Museum of Nature, Vietnam Academy of Science and Technology; Graduate University of Science and Technology
  • Nguyen Thi Thu Graduate University of Science and Technology; Center for high Technology development, Vietnam Academy of Science and Technology
  • Vladimir G. Gagarin Institute for Biology of Inland Waters, Russian Academy of Sciences https://orcid.org/0000-0001-9825-3177
  • Nguyen Dinh Tu Institute of Ecology and Biological Resources, Vietnam Academy of Sciences and Technology; Graduate University of Science and Technology

DOI:

https://doi.org/10.33910/2686-9519-2023-15-2-401-410

Keywords:

free-living marine nematodes, morphology, new species

Abstract

Two new nematode species of the order Monhysyterida from coral reef off the coast of Vietnam are described and illustrated. Theristus coralis sp. n. is morphologically similar to Th. macroflevensis Gerlach, 1954 and Th. metaflevensis Gerlach, 1955 and differs from both species by presence of cardial glands and posterior sack of uterus, longer pharynx, shorter gubernaculum and closer to anterior body end located vulva. Thalassomonhystera gracilina sp. n. resembles Th. tasmaniensis (Allgen, 1927) but has longer and thinner body, longer tail in females and longer and different structures of spicules and a different structure of stoma.

References

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Published

2023-06-30

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