Abstract
A new genus of nematodes, Valvaelaimoides gen. n., from the family Linhomoeidae Filipjev, 1922 has been validated. The genus is characterized by very large and circular amphidial fovea with edges strongly sclerotized, as well as a rather complex vulva structure of the pharynx bulb. The new genus includes two species: Valvaelaimoides macramphis sp. n. (type species) and Valvaelaimoides leptus sp. n. Their illustrated description has been given. V. leptus sp. n. is distinguished from V. macramphis sp. n. by a shorter body, relatively longer cephalic setae, and shorter spicules.
Similar content being viewed by others
References
Gagarin, V.G. and Nguyen Vu Thanh, Two new nematode species (Nematoda) from the mangroves of the Yen River Delta, Vietnam, Inland Water Biol., 2016, vol. 9, no. 1, pp. 39–47.
Gagarin, V.G., Nguyen Vu Thanh, Nguyen Dinh Ge, and Nguyen Xuan Fyung, Two new species of the genus Trissonchulus (Nematoda, Enoplida, Ironidae) from the Red River Mouth, Vietnam, Zool. Zh., 2012, vol. 97, no. 2, pp. 236–241.
Gagarin, V.G. and Nguyen Dinh Tu, Two new species of free-living nematodes (Nematoda and Chromadorea) from mangrove thicket in Vietnam, Inland Water Biol., 2014, vol. 7, no. 4, pp. 338–347.
Nguyen Vu Thanh and Gagarin, V.G., A new genus and two new species of marine free-living nematodes from the coastal waters of Southern Vietnam, Russ. J. Mar. Biol., 2011, vol. 37, no. 5, pp. 357–361.
Gagarin, V.G., Anoplostoma foetidum sp. n. (Nematoda, Enoplida) and Prodorylaimus andrassyi sp. n. from mangrove forest in Vietnam, Int. J. Nematol., 2013, vol. 23, no. 1, pp. 1–9.
Gagarin, V.G., Four new species of free living marine nematodes of the family Comesomatidae (Nematoda, Araeolaimida) from coast of Vietnam, Zootaxa, 2013, vol. 3608, no. 7, pp. 547–560.
Gagarin, V.G., Nguyen vu thanh. four new species of free-living nematodes of family Axonolaimidae (Nematoda, Araeolaimida) from mangrove of Mekong River Delta, Vietnam, Int. J. Nematol., 2008, vol. 18, no. 2, pp. 133–143.
Fonseca, G. and Bezerra, T.N., Order Monhysterida Filipjev, 1929, in Handbook of Zoology, vol. 2: Nematoda, Hamburg: De Gruyter, 2014, pp. 435–465.
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © V.G. Gagarin, 2017, published in Biologiya Vnutrennykh Vod, 2017, No. 2, pp. 30–38.
Rights and permissions
About this article
Cite this article
Gagarin, V.G. New genus and two new species of free-living nematodes (Namatoda) from mangrove thickets of the Yen River Delta (Vietnam). Inland Water Biol 10, 145–152 (2017). https://doi.org/10.1134/S1995082917020043
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1995082917020043