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Issue: Vol. 4444 No. 2: 9 Jul. 2018
Type: Article
Published: 2018-07-09
DOI: 10.11646/zootaxa.4444.2.6
Page range: 179–188
Abstract views: 84
PDF downloaded: 1

Cobbia bengalensis sp. nov. (Xyalidae: Monhysterida) from an eroding island of Sundarban, India

Zoological Survey of India, M-Block, New Alipore, Kolkata—700053, India. S. D. Marine Biological Research Institute, Sagar Island, Sundarban, 24 Parganas (S)—743373, West Bengal, India
Serampore college, 8 William Carey Sarani, Maniktala, Hooghly—712201, India.
S. D. Marine Biological Research Institute, Sagar Island, Sundarban, 24 Parganas (S)—743373, West Bengal, India
Nematoda Bay of Bengal Jambu dwip free-living nematode new species taxonomy biodiversity cataloging

Abstract

A new species, Cobbia bengalensis sp. nov., of free-living marine nematodes is described from an island of Sundarban, Indian coast and compared with other eight valid species of the genus. Cobbia bengalensis sp. nov. is characterized and differentiated from the others by a unique combination of sexually dimorphic tail, arrangement of anterior sensilla, amphid position, presence of four subcephalic sensilla at the level of amphid, buccal cavity with one dorsal and two subventral teeth, elongated cardia and the shape of gubernaculum. Some previously recorded taxa thought to be the species of Cobbia has also been discussed. Wrongly recorded data for nematofaunal inventory from Indian water has also been criticized.

 

References

  1. Allgén, C. A. (1933) Freilebende Nematoden aus dem Trondhjemsfjord. Capita Zoologica, 4 (2), 1–162.

    Allison, M.A., Khan, S.R., Goodbred Jr., S.L. & Kuehl, S.A. (2003) Stratigraphic evolution of the late Holocene Ganges–Brahmaputra lower delta plain. Sedimentary Geology, 155 (3 & 4), 317–342.
    https://doi.org/10.1016/S0037-0738(02)00185-9

    Ansari, K.G.M.T., Lyla, P.S. & Ajmal Khan, S. (2016) New Distributional records of free-living marine nematodes from Indian waters II. Monhysterids. Indian Journal of Geo-Marine Science, 45(2), 342–351.

    Baylis, H.A. (1936) Nematoda: Ascaroidea and Strongyloidea. The Fauna of British India including Ceylon and Burma. Vol. I. Published under the authority of the Secretary of State for India in Council, 408 pp. [printed by Taylor & Francis, Red Lion Court, Fleet Street]

    Coomans, A. & Eyualem-Abebe (2006) Order Monhysterida. In: Eyualem-Abebe, Traunspurger, W. & Andrássy, I. (Eds.), Freshwater Nematodes, Ecology and Taxonomy. CABI Publishing, Wallingford, Oxfordshire, pp. 574–603.
    https://doi.org/10.1079/9780851990095.0574

    Datta, T.K., Miljutin, D.M., Chakraborty, S.K. & Mohapatra, A. (2016) Cyathoshiva amaleshi gen. n. sp. n. (Nematoda: Cyatholaimidae) from the coast of India. Zootaxa, 4126 (4), 577–586.
    https://doi.org/10.11646/zootaxa.4126.4.8

    Filipjev, I.N. (1918) Free-living marine nematodes of the Sevastopol area. Transactions of the Zoological Laboratory and the Sevastopol Biological Station of the Russian Academy of Sciences, Series II, No 4 (I & II), 1–135.

    Fonseca, G. & Bezerra, T.N. (2014) Chapter 7.14 Order Monhysterida Filipjev, 1929. In: Schmidt-Rhaesa, A. (Eds.), Handbook of Zoology. Gastrotricha, Cycloneuralia, Gnathifera. Vol. 2. Nematoda. Walter De Gruyter, Berlin, pp. 399–434.

    Gerlach, S.A. (1953) Die Nematodenbesiedlung des Sandstrandes und des Küstengrundwassers an der italienischen Küste I. Systematischer Teil. Archivio Zoologico Italiano, 37, 517–640.

    Hazra, S., Mukhopadhyay, A., Mukherjee, S., Akhand, A., Chanda, A., Mitra, D. & Ghosh, T. (2016) Disappearance of the New Moore Island from the Southernmost Coastal Fringe of the Sundarban Delta—A Case Study. Journal of the Indian Society of Remote Sensing, 44 (3), 479–484.
    https://doi.org/10.1007/s12524-015-0524-7

    Huang, Y. & Zhang, Z. (2010). Two new species of Xyalidae (Nematoda) from the Yellow Sea, China. Journal of the Marine Biological Association of the United Kingdom, 90 (2), 391–397.
    https://doi.org/10.1017/S0025315409000794

    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 det Xyalidae (freilebende Nematoden) auf der Grundlage einer kritischen Analyse von 56 Arten aus Nord- und Ostsee. Aus clem Zoologischen lnstitut cler Universitiit Kiel. Veröffentlichungen des Institutes für Meeresforschung in Bremerhaven, 16, 197–261.

    de Man, J.G. (1907) Sur quelques espèces nouvelles ou peu connues de nématodes libres habitant les côtes de la Zélande. Mémoires de la Société zoologique de France, 20, 33–90.

    Rudra, K. (2014) Changing river courses in the western part of the Ganga–Brahmaputra delta. Geomorphology, 227, 87–100.
    http://dx.doi.org/10.1016/j.geomorph.2014.05.013

    Schuurmans Stekhoven Junior, J.H. (1935) Nematoda: Systematischer Teil, Nematoda errantia. Grimpe, G. and E. Wagler, Die Tierwelt der Nord- und Ostsee (Leipzig 1935), V b, 1–173.

    Timm, R. W. (1956) Marine nematodes from the bay of Bengal I. Phasmidea. Journal of the Bombay Natural History Society, 54 (1), 87–90.

    Timm, R.W. (1957) New Marine Nematodes from St. Martin's Island. Pakistan Journal of Scientific Research, 9 (4), 133–138.

    Timm, R.W. (1961) The marine nematodes of the Bay of Bengal. Proceedings of the Pakistan academy of Science, 1 (1), 25–88.

    Timm, R.W. (1967a) New marine nematodes of the family Linhomoeidae from East Pakistan. Proceedings of the Pakistan academy of Science, 4 (1), 15–22.

    Timm, R.W. (1967b) Two New Species of Oncholaimellus from the Bay of Bengal. Proceedings of the Pakistan Academy of Science, 4 (2), 19–25.

    Timm, R.W. (1967c) Some estuarine nematodes from the Sunderbans. Proceedings of the Pakistan Academy of Science, 4, 1–13.

    Timm, R.W. (1968) Sphaerotheristus (Monhysteridae), a new marine nematode genus. Transactions of the American Microscopical Society, 87 (2), 157–164.
    https://doi.org/10.2307/3224436

    Timm, R.W. & Franklin, M.T. (1969) Two Marine Species of Aphelenchoides. Nematologica, 15, 370–375.
    https://doi.org/10.1163/187529269X00434

    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.

    Wieser, W. (1959) Free-living nematodes and other small invertebrates of Puget Sound beaches. In: University of Washington Publications in Biology. Vol. 19. University of Washington Press, Seattle, 179 pp., 109 figs., 46 pls.