Three new species of free-living nematodes of the family Comesomatidae from the delta of the Mekong River, Vietnam (Nematoda, Monhysterida)
V.G. Gagarin & Vu Thanh Nguyen
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.
Zoosystematica Rossica, 2006, 15(2): 221–228 ▪ Published in print 2 March 2007
https://doi.org/10.31610/zsr/2006.15.2.221 ▪ Open full article 
References
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).
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).
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).
Grimaldi de Zio, S. 1968. Una nuova specie di Nematodi Comesomatidae: Dorylaimopsis mediterraneus. Boll. Zool., 35: 137-141. https://doi.org/10.1080/11250006809436079
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
Seinhorst, J.W. 1959. A rapid method for the transfer of nematodes from fixative to anhydrous glycerin. Nematologica, 4: 67-69. https://doi.org/10.1163/187529259X00381
Timm, R.H. 1961. The marine nematodes of the Bay ofBengal. Proc. Pakistan Acad. Sci., 1(1): 1-88.
Vitiello, P. 1970. Nematodes libres marins des vases profondes du Golfe du Lion. II. Chromadorida. Tethys, 2: 449-500.
Wieser, W. 1954. Free-living marine nematodes II. Chromadoroidea. Acta Univ. Lund. (N.F. 2), 50(16): 1-148.