Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 4098 No. 2: 6 Apr. 2016
Type: Article
Published: 2016-04-06
DOI: 10.11646/zootaxa.4098.2.7
Page range: 333–357
Abstract views: 66
PDF downloaded: 3

Revision of Cervonema Wieser, 1954 and Laimella Cobb, 1920 (Nematoda: Comesomatidae) with descriptions of two species from East Sea, Korea

Department of Life Science, College of Natural Sciences, Hanyang University, Seoul 04763, Korea
Department of Invertebrate Zoology, Faculty of Biology, Moscow State University, Moscow, 119991, Russia
Department of Life Science, College of Natural Sciences, Hanyang University, Seoul 04763, Korea
Nematoda Cervonema Comesomatidae descriptions Laimella marine nematodes new species pictorial key taxonomy

Abstract

One new and one known species of the family Comesomatidae Filiepjev, 1918 were collected from marine sediments in the East Sea, Korea. Cervonema donghaensis sp. nov. is related to C. proximamphidum Tchesunov, 2000 and C. chilensis Chen & Vincx, 2000 but differs from them by the presence of the gubernaculum and by having outer labial setae and cephalic setae of unequal length. It differs from C. proximamphidum by having a rather shorter tail and the shape of the posterior widening of the pharynx, which has distinct muscular striation. Cervonema donghaensis sp. nov. differs from C. chilensis in body length, higher de Man’s ratio c, and having a shorter cylindrical portion of the tail. Cervonema deltensis Hope & Zhang 1995 is considered as a junior synonym of C. tenuicauda (Schuurmans Stekhoven, 1950) Wieser, 1954. Specimens of Laimella filipjevi Jensen, 1979 from East Sea, Korea largely agree with the original description of Jensen (1979) of nematodes from the Western Baltic Sea, except for slight differences in length of cephalic setae and spicules. It also coincides well with the redescription of L. filipjevi by Tchesunov (2000) based on specimens from the White Sea. Pictorial keys for the identification of valid species in the genera Cervonema Wieser, 1954 and Laimella Cobb, 1920 are given.

 

References

  1. Barnes, N., Kim, H.G. & Lee, W. (2012) New species of free–living marine Sabatieriinae (Nematoda: Monhysterida: Comesomatidae) from around South Korea. Zootaxa, 3368, 263–290.

    Boxshall, G.A., Mees, J., Costello, M.J., Hernandez, F., Gofas, S., Hoeksema, B.W., Klautau, M., Kroh, A., Paulay, G., Poore, G., Read, G.B., Stöhr, S., de Voogd, N., De Broyer, C., Horton, T., Kennedy, M., Decock, W., Dekeyzer, S., Trias Verbeeck, A., Vandepitte, L., Vanhoorne, B., Adlard, R., Adriaens, P., Agatha, S., Ahn, K. J., Ahyong, S., Alvarez, B., Alvarez, F., Anderson, G., Angel, M., Artois, T., Bail, P., Bailly, N., Bamber, R., Barber, A., Bartsch, I., Bellan-Santini, D., Berta, A., Bieler, R., Bitner, M. A., Błażewicz-Paszkowycz, M., Bock, P., Böttger-Schnack, R., Bouchet, P., Boury-Esnault, N., Boyko, C., Brandao, S. N., Bray, R., Bruce, N. L., Caballer, M., Cairns, S., Cárdenas, P., Carrera-Parra, L. F., Catalano, S., Cedhagen, T., Chan, B. K., Chan, T. Y., Cheng, L., Churchill, M., Coleman, C. O., Collins, A. G., Crandall, K. A., Cribb, T., Dahdouh-Guebas, F., Daneliya, M., Dauvin, J. C., Davie, P., Dayrat, B., De Grave, S., d'Hondt, J. L., Díaz, M. C., Dijkstra, H., Dohrmann, M., Dolan, J., Doner, S., Eibye-Jacobsen, D., Eitel, M., Emig, C., Epler, J., Faber, M., Fauchald, K., Fautin, D., Feist, S., Fernández-Rodríguez, V., Fišer, C., Foster, W., Frank, J. H., Fransen, C., Fraussen, K., Furuya, H., Garcia-Alvarez, O., Gasca, R., Gaviria-Melo, S., Gerken, S., Gheerardyn, H., Gibson, D., Gil, J., Gittenberger, A., Glasby, C., Glover, A., González Solís, D., Gordon, D., Grabowski, M., Guerra-García, J. M. ., Guiry, M. D., Hajdu, E., Hallermann, J., Harasewych, J., Harris, L., Hayward, B., Hendrycks, E., Ho, J. s., Hoeg, J., Holsinger, J., Hooper, J., Houart, R., Hughes, L., Hummon, W., Iseto, T., Ivanenko, S., Janussen, D., Jarms, G., Jazdzewski, K., Just, J., Kamaltynov, R. M., Kaminski, M., Kantor, Y., Karanovic, I., Kelly, M., Kim, Y. H., King, R., Kirk, P., Kolb, J., Krapp-Schickel, T., Krijnen, C., Kristensen, R., Kronenberg, G., Krylova, E., LaFollette, P., Lambert, G., Lazarus, D., LeCroy, S., Lemaitre, R., Lester, B., Londoño Mesa, M. H., Lowry, J., Macpherson, E., Madin, L., Mah, C., Manconi, R., Mapstone, G., Marshall, B., Marshall, D. J., Meland, K., Merrin, K., Messing, C., Mills, C., Molodtsova, T., Monsecour, K., Mooi, R., Moreira da Rocha, R., Moretzsohn, F., Mortimer, J., Neuhaus, B., Ng, P., Nielsen, C., Nishikawa, T., Norenburg, J., O'Hara, T., Oliverio, M., Opresko, D., Osawa, M., Parker, A., Patterson, D., Paxton, H., Peñas, A., Perrier, V., Perrin, W., Pilger, J. F., Pisera, A., Polhemus, D., Pugh, P., Reid, D. G., Reimer, J. D., Reuscher, M., Rius, M., Robin, A., Rogacheva, A., Rolán, E., Rosenberg, G., Rützler, K., Rzhavsky, A., Saiz-Salinas, J., Salazar-Vallejo, S., Sames, B., Sartori, A. F., Satoh, A., Scarabino, V., Schatz, H., Schierwater, B., Schmidt-Rhaesa, A., Schneider, S., Schönberg, C., Schotte, M., Schuchert, P., Schwabe, E., Segers, H., Self-Sullivan, C., Senna, A. R., Serejo, C., Shamsi, S., Shenkar, N., Siegel, V., Sinniger, F., Sivell, D., Sket, B., Smit, H., Sterrer, W., Stienen, E., Suárez-Morales, E., Summers, M., Swalla, B. J., Tabachnick, K. R., Taiti, S., Tang, D., Tasker, M., Taylor, J., Tëmkin, I., ten Hove, H., ter Poorten, J. J., Terryn, Y., Thomas, J., Thuesen, E. V., Thurston, M., Thuy, B., Timi, J. T., Timm, T., Todaro, A., Tucker, J., Turon, X., Tyler, S., Uetz, P., Vacelet, J., Vader, W., Väinölä, R., van der Meij, S. E., van Ofwegen, L., van Soest, R., Van Syoc, R., Vanaverbeke, J., Vervaet, F., Vincx, M., von Cosel, R., Vonk, R., Vos, C., Walker-Smith, G., Walter, T. C., Watling, L., White, K., Whitmore, D., Williams, G., Wilson, G. D., Wyatt, N., Wylezich, C., Yasuhara, M., Zanol, J. & Zeidler, W. (2014) WoRMs. World Register of Marine Species. Available from: http://www.marinespecies.org at VLIZ (Accessed 1 January 2016)

    Burgess, R. (2001) An improved protocol for separating meiofauna from sediments using colloidal silica sols. Marine Ecology Progress Series, 214, 161–165.
    http://dx.doi.org/10.3354/meps214161

    Bussau, C. (1993) Taxonomische und ökologische Untersuchungen an Nematoden des Peru-Beckens. Dissertation, Universität Kiel, 621 pp.

    Chen, G. & Vincx, M. (2000) Nematodes from the Strait of Magellan and the Beagle Channel (Chile): the genera Cervonema and Laimella (Comesomatidae: Nematoda). Hydrobiologia, 427, 27–49.
    http://dx.doi.org/10.1023/A:1003943021901

    Cobb, N.A. (1920) One hundred new nemas. Contribution to a Science of Nematology (Baltimore), 9, 217–343.

    De Ley, P. & Blaxter, M.L. (2004) A new system for Nematoda: combining morphological characters with molecular trees, and translating clades into ranks and taxa. Nematology Monographs and Perspectives, 2, 633–653.

    Filipjev, I. N. (1922) Encore sur les Nématodes de la Mer Noire. Trudy stavropolskogo selskokhozjaistvennogo instituta 1, 83–184.

    Fonseca G. & Bezerra T.N. (2014) Order Araeolaimida De Coninck & Schuurmans Stekhoven, 1933. In: Schmidt-Rhaesa A. (Ed.), Handbook of zoology, 1st ed. De Gruyter, Berlin, pp. 465–486.

    Gourbault, N. (1980) Nématodes abyssaux (Campagne Walda du N/O «J. Charcot» II. Espèces et genre nouveaux de Comesomatidae. Bulletin du Muséum National d’Histoire Naturelle, 4, 737–749.

    Hong, J.H. & Lee, W. (2014) Two new species of free-living marine nematodes (Nematoda: Oncholaimida: Enchelidiidae) from Maemul Island, Korea. Zootaxa, 3785 (3), 419–437.
    http://dx.doi.org/10.11646/zootaxa.3785.3.5

    Hooper, D. (1986) Extraction of free-living stages from soil. In Laboratory Methods for Work with Plant and Soil Nematodes. Ministry of Agriculture, Fisheries and Food, London, pp. 5–30.

    Hopper, B. (1967) Free-living marine nematodes from Biscayne Bay, Florida, I. Comesomatidae: the male of Laimella longicauda Cobb, 1920, and description of Actarjania new genus. Marine Biology, 1, 140–144.
    http://dx.doi.org/10.1007/BF00386520

    Hope, W. & Zhang, Z. (1995) New nematodes from the Yellow Sea, Hopperia hexadentata n. sp. and Cervonema deltensis n. sp. (Chromadorida: Comesomatidae), with observations on morphology and systematics. Invertebrate Biology, 114, 119–138.
    http://dx.doi.org/10.2307/3226884

    International Code of Zoological Nomenclature (Fourth Edition). adopted by the International Union of Biological Science (1999). The Natural History Museum. London.

    Jensen, P. (1979) Revision of Comesomatidae (Nematoda). Zoologica Scripta, 8, 81–105.
    http://dx.doi.org/10.1111/j.1463-6409.1979.tb00621.x

    Jensen, P. (1988) Four new nematode species, abundant in the deepsea benthos of the Norwegian Sea. Sarsia, 73, 149–155.

    Leduc, D. (2012) Deep-sea nematodes (Comesomatidae) from the Southwest Pacific Ocean: five new species and three new species record. European Journal of Taxonomy, 24, 1–42.
    http://dx.doi.org/10.5852/ejt.2012.24

    Muthumbi, A., Soetaert, K. & Vincx, M. (1997) Deep-sea nematodes from the Indian Ocean: new and known species of the family Comesomatidae. Hydrobiologia, 346, 25–57.
    http://dx.doi.org/10.1023/A:1002989210231

    Platt, H.M (1984) Pictorial taxonomic keys: their construction and use for the identification of freeliving marine nematodes. Cahiers de Biologie Marine, 25, 83–91.

    Rho, H., Kim, W. & Chang, C. (2007) Description of two new free-living marine nematode species of the subgenus Desmolorenzenia (Desmoscolecida, genus Desmoscolex) from Korea. Journal of Natural History, 41, 313–326.
    http://dx.doi.org/10.1080/00222930601176571

    Rho, H. & Min, W. (2011) Nematoda: Chromadorea: Desmodorida: Draconematidae. Marine dragon nematodes. Invertebrate Fauna of Korea, 13, 1–100.

    Rosli, N., Leduc, D. & Probert P.K. (2014) Two new species and a new record of Comesomatidae (Nematoda, Araeolaimida) from Southern Hikurangi Margin, New Zealand. Zootaxa, 3900 (4), 505–525.
    http://dx.doi.org/10.11646/zootaxa.3900.4.3

    Schuurmans Stekhoven, J.H.S. (1950) The freeliving marine nemas of the Mediterranean. I. The Bay of Villefranche. Institut Royal des Sciences Naturelles de Belgique, 37, 1–220.

    Seinhorst, J.W. (1959) A rapid method for the transfer of nematodes from fixative to anhydrous glycerin. Nematologica, 4, 67–69.
    http://dx.doi.org/10.1163/187529259X00381

    Tchesunov, A. (2000) Several new and known species from the families Coninckiidae and Comesomatidae (Nematoda) in the White Sea. Hydrobiologia, 435, 43–59.
    http://dx.doi.org/10.1023/A:1004070919109

    Vanaverbeke, J, Bezerra, T.N., Braeckman, U., De Groote, A., De Meester, N., Deprez, T., Derycke, S., Guilini, K., Hauquier, F., Lins, L., Maria, T., Moens, T., Pape, E., Smol, N., Taheri, M., Van Campenhout, J., Vanreusel, A., Wu, X. & Vincx, M. (2016) NeMys: World Database of Free-Living Marine Nematodes. Available from: http://nemys.ugent.be (Accessed 1 January 2016)

    Vitiello, P. (1970) Nématodes libres marins des vases profondes du Golfe du Lion. 2. Chromadorida. Téthys, 2, 449–500.

    Vitiello, P. (1971) Nématodes nouveaux des vases terrigènes cotières des côtes provençales. Téthys, 2, 859–875.

    Ward, A.R. (1974) Three new species of free-living marine nematodes from sublittoral sediments in Liverpool Bay. Marine Biology, 24, 93–96.
    http://dx.doi.org/10.1007/BF00402852

    Wieser, W. (1954) Free–living nematodes. 2. Chromadoroidea. Reports of the Lund University Chile Expedition 1948–1949, 17, C.W.K. Gleerup, Lund, 148 pp.