Three new species of free-living nematodes of the family Comesomatidae from the delta of the Mekong River, Vietnam (Nematoda, Monhysterida)

Author:

Gagarin V.G.1,Nguyen Vu Thanh2

Affiliation:

1. Institute of Inland Waters Biology, Russian Academy of Sciences, Borok 152742, Yaroslavl Prov., Russia

2. Department of Nematology, Institute of Ecology and Biological Resources (IEBR), Vietnam National Centre for Natural Sciences and Technology (NCST), 18 Hoang Quos Viet Rd., 10000 Hanoi, Vietnam

Abstract

Sabatieria parvula sp. n., Dorylaimopsis tumida sp. n. and Paracomesoma curvatum sp. n. from the delta of the Mekong River (Vietnam) are described and illustrated. Sabatieria parvula sp. n. differs from S. parabyssalis Wieser, 1954 and S. stekhoveni Vitiello, 1970 in the slenderer body, longer tail and narrowed labial region. Dorylaimopsis tumida sp. n. differs from D. mediterranea Grimaldi de Zio, 1968 in the shorter body, longer cephalic setae, shorter spicules and absence of striation of spicules. Paracomesoma curvatum sp. n. differs from P. longispiculum (Timm, 1961) in the longer body, shorter cephalic setae, longer stoma and spicules, and structure of cuticle areolation.

Publisher

Zoological Institute of the Russian Academy of Sciences

Subject

Animal Science and Zoology,Insect Science,Ecology, Evolution, Behavior and Systematics

Reference9 articles.

1. Gagarin, V.G. & Nguyen, V.T. 2003a. Three new species of free-living nematodes from Vietnamese water bodies. Zool. Zh., 82(11): 1393-1401. (In Russian).

2. Gagarin, V.G. & Nguyen, V.T. 2003b. Two new species of free-living nematodes from the CauRiver (Vietnam). Zool. Zh., 82(12): 1418-1425. (In Russian).

3. Gagarin, V.G., Nguyen, V.T. & Nguyen, D.T. 2003. Three new species of free-living nematodes from freshwater bodies of Vietnam (Nematoda: Araeolaimida). Zoosyst. Ross., 12(1): 7-14. (In Russian).

4. Grimaldi de Zio, S. 1968. Una nuova specie di Nematodi Comesomatidae: Dorylaimopsis mediterraneus. Boll. Zool., 35: 137-141. https://doi.org/10.1080/11250006809436079

5. Platt, H.M. 1985. The free-living marine nematode genus Sabatieria (Nematoda: Comesomatidae). Taxonomic revision and pictorial keys. Zool. J. Linnean Soc., 83: 27-78. https://doi.org/10.1111/j.1096-3642.1985.tb00872.x

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