Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 4514 No. 4: 9 Nov. 2018
Type: Article
Published: 2018-11-09
DOI: 10.11646/zootaxa.4514.4.11
Page range: 583–592
Abstract views: 108
PDF downloaded: 1

Two new species of Xyalidae (Monhysterida, Nematoda) from the East China Sea

College of Life Science, Liaocheng University, Liaocheng, 252059, P.R. China. 2College of Life Science, Shandong Normal University, Jinan, 250014, P.R. China.
College of Life Science, Shandong Normal University, Jinan, 250014, P.R. China.
College of Life Science, Liaocheng University, Liaocheng, 252059, P.R. China.
Nematoda Daptonema donghaiensis sp. nov. Cobbia heterospicula sp. nov. new species taxonomy East China Sea

Abstract

Two new free-living nematode species of the family Xyalidae Chitwood, 1951 found in the East China Sea are described. Daptonema donghaiensis sp. nov. is characterized by epidermal chords of transparent cells present in most parts of the body; amphideal fovea approximately two times head diameter from anterior body end; L-shaped spicules with cephalate proximal end; tubular gubernaculums; and conico-cylindrical tail with long cylindrical portion. Cobbia heterospicula sp. nov. is characterized by slender body, buccal cavity with one dorsal tooth and two small subventral teeth; amphideal fovea far from the anterior body end; spicules that are paired but unequal in size, with right spicule longer and left spicule shorter; gubernaculums with dorsal apophyses; and conico-cylindrical tail with long filiform portion. An identification key to valid species of the genus Cobbia is given.

 

References

  1. Aryuthaka, C. & Kito, K. (2012) Two new species of the genus Daptonema Cobb, 1920 (Nematoda: Xyalidae) found in the monospecific Halophila ovalis patches within an intertidal mixed-species seagrass bed on the coast of the Andaman Sea, Thailand. Zootaxa, 3350, 34–46.

    Campinas Bezerra, T.N., Vanreusel, A., Decraemer, W., Eisendle-Flöckner, U., Hodda, M., Holovachov, O., Leduc, D., Miljutin, D., Mokievsky, V., Peña Santiago, R., Sharma, J., Smol, N., Tchesunov, A., Venekey, V. & Zhao, Z. (2018) NeMys: World Database of Free-Living Marine Nematodes. Available from: http://nemys.ugent.be/ (accessed 1 August 2018)

    Huang, Y. & Gao, Q. (2016) Two new species of Chromadoridae (Chromadorida: Nematoda) from the East China Sea. Zootaxa, 4144 (1), 89–100.
    https://doi.org/10.11646/zootaxa.4144.1.4

    Huang, Y. & Xu, K.D. (2012) A New Species of Free-living Nematode of Daptonema (Monohysterida: Xyalidae) from the Yellow Sea, China. Aquatic Science and Technology, 1 (1), 1–8.
    https://doi.org/10.5296/ast.v1i1.2443

    Huang, Y. & Zhang, Z.N. (2010) Two new species of Xyalidae (Nematoda) from the Yellow Sea, China. Journal of the Marine Biological Association UK, 90, 391–397.
    https://doi.org/10.1017/S0025315409000794

    Jiang, W.J. & Huang, Y. (2015) Paragnomoxyala gen. nov. (Xyalidae, Monhysterida, Nematoda) from the East China Sea. Zootaxa, 4039 (3), 467–474.
    https://doi.org/10.11646/zootaxa.4039.3.6

    Lo Russo, V. & Pastor de Ward, C.T. (2012) Neochromadora alejandroi sp. n. (Chromadorida: Chromadoridae) and Cobbia macrodentata sp. n. (Monhysterida: Xyalidae), two new species of free-living marine nematodes from the Patagonian coast. Nematology, 14 (7), 805–815.
    https://doi.org/10.1163/156854112X627327

    Lorenzen, S. (1977) Revision der Xyalidae (freilebende Nematoden) auf der Grundlage einer kritischen Analyse von 56 Arten aus Nord-und Ostsee. Veröffentlichungen Instituts für Meeresforschung in Bremerhaven, 16, 197–261.

    Venekey, V., Gheller, P.F., Maria, T.F., Brustolin, M.C., Kandratavicius N., Vieira, D.C., Brito, S., Souza G.S. & Fonseca, G. (2014) The state of the art of Xyalidae (Nematoda, Monhysterida) with reference to the Brazilian records. Marine Biodiversity, 44 (3), 367–390.
    https://doi.org/10.1007/s12526-014-0226-3

    Wang, C.M., An, L.G. & Huang, Y. (2017) Two new species of Terschellingia (Linhomoeidae, Monhysterida, Nematoda) from the East China Sea. Cahiers de Biologie Marine, 58, 33–41.

    Wang, H.X. & Huang, Y. (2016) A new species of Parodontophora (Nematoda:Axonolaimidae) from the Intertidal Zone of the East China Sea. Journal of Ocean University of China, 1, 28–32.
    https://doi.org/10.1007/s11802-016-2671-z

    Wieser, W. (1959) Free-living nematodes and other small invertebrates of Puget Sound beaches. University of Washington Publications in Biology, 19, 1–179.

    Warwick, R.M. & Platt, H.M. (1973) New and little known marine nematodes from a Scottish sandy beach. Cahiers de Biologie Marine, 14, 135–158.

    Wu, J.H. & Liang, Y. (2000) Inland free-living nematodes in China: a historical review of taxonomic studies with descriptions of Aphanonchus orientalis sp. nov. (Chromadorida: Leptolaimidae) and Daptonema limnobia sp. nov. (Monhysterida: Xyalidae). Annales Zoologici, 2000 (50), 307–319.