DESCRIPTION OF TWO NEW SPECIES OF FREE-LIVING NEMATODES: HALICHOANOLAIMUS STAGNALIS SP. NOV. AND ACTINONEMA DOLICHURUM SP. NOV. FROM ARTIFICIAL RESERVOIRS IN VIETNAM
DOI:
https://doi.org/10.33910/1999-4079-2017-9-3-131-142Keywords:
Vietnam, artificial reservoirs, free-living nematodes, new species, Halichoanolaimus stagnalis sp. nov., Actinonema dolichurum sp. nov.Abstract
Illustrated description of two species of free-living nematodes, Halichoanolaimus stagnalis sp. nov., Actinonema dolichurum sp. nov., found in ground of artificial reservoirs in Vietnam. H. stagnalis sp. nov. differs from three relatives to species: H. ovalis Ditlevsen, 1921, H. unicus Inglis, 1968 и H. sonorus Belogurov et Fadeeva, 1980 by another numbers and location of male supplements and less number of turns of amphidial fovea. Actinonema dolichurum sp. nov. morphological similar to A. parvum Gagarin, 2015 and A. fidatum Vitiello, 1970, but differs from both species by thicker body, shorter cephalic setae and longer and slender tail.
References
ЛИТЕРАТУРА
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Ditlevsen Hj., 1927. Free-living nematodes from Greenland, land and freshwater // Meddelser om Groenland. Vol. 23 (suppl.). P. 157-198
Gagarin V.G., 2017. An annotated checklist of the free-living nematodes from mangrove thickets of Vietnam // Zootaxa (in pres.)
Gagarin V.G., Nguyen Vu Thanh, 2010. Two new species of the family Xyalidae Chitwood, 1951 (Nematoda, Monhystaerida) from littoral zone of South China Sea // International Journal of Nematology. Vol. 20, № 1. P. 1-6
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Gagarin V.G., Nguyen Vu Thanh, 2016. Paracanthonchus brevicaudatus sp. n. (Nematoda, Chromadorida, Cyatholaimidae) from artificial reservoirs in Vietnam // International Journal of Nematology. Vol. 26. № 2. P. 112-119
Gusakov V.A., Gagarin V.G., 2017. An annotated checklist of the main representatives of meiobenthos from inland water bodies of Central and Southern Vietnam I. Roundworms (Nematoda) // Zootaxa. 4300 (1). P. 1-43.
Inglis W.G., 1968. Interstitial nematodes from St. Vincent’s Bay, New Caledonia // Expeditions francails sur les recifes corallines de la Nouvelle, Caledonia. (Editions de la Fondation Singer-Polignac. Vol. 2. P. 29-76
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Zograf Ju., Trebukhova Ju., Pavlyuk O., 2015. New deep-sea free-living marine nematodes from the Sea of Japan: the genera Siphonolaimus and Halichoanolaimus (Nematoda: Chromadorea) with keys to species identifications // Zootaxa. 3911 (1). P. 63-80
REFERENCES
Allgen C., 1928. Freilebende marine Nematoden von den Campbell-und Stateninseln. Nyt Magasin for Naturvidenskaberne. Vol.66. S. 249-309
Belogurov O.J., Fadeeva N.P., 1980. Notes of the genus Halichoanolaimus (Nematoda, Choanolaimidae) with the description of two new species. Zoologichesky Zurnal. Vol. 59. № 5. P. 656-665
Ditlevsen Hj., 1927. Free-living nematodes from Greenland, land and freshwater. Meddelser om Groenland. Vol. 23 (suppl.). P. 157-198
Gagarin V.G., 2015. Two new species of the genus Actinonema Cobb 1920 (Nematoda, Chromadorida) from coast of Vietnam. Zoologichesky Zurnal. Vol. 94. № 9. P. 995-1008
Gagarin V.G., 2017. An annotated checklist of the free-living nematodes from mangrove thickets of Vietnam. Zootaxa (in pres.)
Gagarin V.G., Nguyen Vu Thanh, 2010. Two new species of the family Xyalidae Chitwood, 1951 (Nematoda, Monhystaerida) from littoral zone of South China Sea. International Journal of Nematology. Vol. 20, № 1. P. 1-6
Gagarin V.G., Nguyen Vu Thanh, 2014. Two new species of the family Xyalidae Chitwood, 1951 (Nematoda, Monhysterida) from the coast of Vietnam. International Journal of Nematology. Vol. 24. № 2. P. 108-116
Gagarin V.G., Nguyen Vu Thanh, 2016. Paracanthonchus brevicaudatus sp. n. (Nematoda, Chromadorida, Cyatholaimidae) from artificial reservoirs in Vietnam. International Journal of Nematology. Vol. 26. № 2. P. 112-119
Gusakov V.A., Gagarin V.G., 2017. An annotated checklist of the main representatives of meiobenthos from inland water bodies of Central and Southern Vietnam I. Roundworms (Nematoda). Zootaxa. 4300 (1). P. 1-43.
Inglis W.G., 1968. Interstitial nematodes from St. Vincent’s Bay, New Caledonia. // Expeditions francails sur les recifes corallines de la Nouvelle, Caledonia. (Editions de la Fondation Singer-Polignac. Vol. 2. P. 29-76
Nguyen Thi Xyan Phong, Klein Judith C., Man Pham Thi, Gagarin V.G., Nguyen Dinh Tu., 2016. Description of the new species of free-living nematodes Daptonema securum sp. now. From artificial reservoirs in Vietnam. Amurian Zoological Journal. Vol. 8, 8, № 4. P. 225-232
Vitiello P., 1970. Nematodes libres marins des vases profondes du Golse du Lion. II. Chromadorids. Tethys. Vol. 2. P. 449-500
Zograf Ju., Trebukhova Ju., Pavlyuk O., 2015. New deep-sea free-living marine nematodes from the Sea of Japan: the genera Siphonolaimus amd Halichoanolaimus (Nematoda: Chromadorea) with keys to species identifications. Zootaxa. 3911 (1). P. 63-80
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