Abstract
Free-living marine nematodes of continental shelf of Portugal were studied through the goals of the Marine Biodiversity Information System Project (M@rbis 2015). Four species unknown to science and belonging to the families Axonolaimidae, Chromadoridae, Desmodoridae and Xyalidae are described. Besides Hypodontolaimus golikovy, Hypodontolaimus portuguese sp. n. is the only species in this genus which lacks precloacal supplements and gubernaculum but differs from the former mainly in cephalic setae length and amphidial fovea features. Metachromadora aliusa sp. n. doesn’t have a unique diagnostic character, differing in many aspects from the other species of the genus instead, mainly teeth number in the buccal cavity, size of the cephalic setae and the amphidial fovea, velum presence in the spicules, number and shape of the precloacal supplements. The main character of Odontophora sinapophysis sp. n. is the absence of apophysis in the gubernaculum. Stylotheristus multipapillatus sp. n. is characterized by the presence of precloacal supplements (papilliform) and the gubernaculum formed by only a piece.
References
Allgén, C.A. (1928) Neue oder wenig bekannte freilebende marine Nematoden von der schwedischen Westküste. Zoologischer Anzeiger, 27, 281–307.
Allgén, C.A. (1929a) Was ist die von Bütschli 1874 aufgestellte Odontophora marina? Zoologischer Anzeiger, 81, 305–309.
Allgén, C.A. (1929b) Südschwedische marine Nematoden. Göteborgs Kungliga Vetenskaps-och Vitterhets-Samhalled Handlingar, 1 B, 1–40.
Allgén, C.A. (1929c) Südschwedische marine Nematoden. Göteborgs Kungliga Vetenskaps-och Vitterhets-Samhalled Handlingar, 1 B (2), 1–40.
Allgén, C. A. (1933) Freilebende Nematoden aus dem Trondhjemsfjord. Capita Zoologica, 4 (2), 1–162.
Allgén, C.A. (1935) Die freilebenden Nematoden des Öresunds. Capita Zoologica, 6 (3), 1–192.
Allgén, C.A. (1947) West American nematodes (Papers from Dr. Th. Mortensen’s Pacific Expedition 1914–16 75). Meddeleiser fra Dansk naturhisforisk Forening i Kjøbenhavn, 110, 65–219.
Andrássy, I. & Gibson, J.A.E. (2007) Nematodes from saline and freshwater lakes of the Vestfold Hills, East Antarctica, including the description of Hypodontolaimus antarcticus sp. n. Polar Biology, 30, 669–678.
https://doi.org/10.1007/s00300-006-0224-4
Appeltans, W., Ahyong, S.T., Anderson, G., Angel, M.V., Artois, T., Bailly, N., Bamber, R., Barber, A., Bartsch, I., Berta, A., Blazewicz-Paszkovicz, M., Bock, P., Boxshall, G., Boyko, C.B., Brandao, S.N., Bray, R.A., Bruce, N.L., Cairns, S.D., Chan, T.Y., Cheng, L., Collins, A.G., Cribb, T., Curini-Galletti, M., Dahdouh-Guebas, F., Davie, P.J.F., Dawson, M.N., Clerck, O.D., Decock, W., Grave, S.D., Voogd, N.J., Domning, D.P., Emig, C.C., Erséus, C., Eschmeyer, W., Fauchald, K., Fautin, D.G., Feist, S.W., Fransen, C.H.J.M., Furuya, H., Garcia-Alvarez, O., Gerken, S., Gibson, D., Gittenberger, A., Gofas, S., Gómez-Daglio, L., Gordon, D.P., Guiry, M.D., Hernandez, F., Hoeksema, B.W., Hopcroft, R.R., Jaume, D., Kirk, P., Koedam, N., Koenemann, S., Kolb, J.B., Kristensen, R.M., Kroh, A., Lambert, G., Lazarus, D.B., Lemaitre, R., Longshaw, M., Lowry, J., Macpherson, M., Madin, L.P., Mah, C., Mapstone, G., McLaughlin, P.A., Mees, J., Meland, K., Messing, C.J., Mills, C.E., Molodsova, T.N., Mooi, R., Neuhaus, B., Ng, P.K.L., Nielsen, C., Norenburg, J., Opresko, D.M., Osawa, M., Paulay, G., Perrin, W., Pilger, J.F., Poore, G.C.B., Pugh, P., Read, G.B., Reimer, J.D., Rius, M., Rocha, R.M., Saiz-Salinas, J.I., Scarabino, V., Schierwater, B., Schmidt-Rhaesa, A., Schnabel, K.E., Schotte, M., Schuchert, P., Schwabe, E., Segers, H., Self-Sullivan, C., Shenkar, N., Siegel, V., Sterrer, W., Stohr, S., Swalla, B., Tasker, M.L., Thuesen, E.V., Timm, T., Todaro, M.A., Turon, X., Tyler, S., Uetz, P., van der Land, J., Vanhoorne, B., van Ofwegen, L.P., van Soest, R.W.M., Vanaverbeke, J., Walker-Smith, G., Walter, T.C., Warren, A., Williams, G.C., Wilson, S.P. & Costello, M.J. (2012) The magnitude of global marine species diversity. Current Biology, 22, 2189–2202.
https://doi.org/10.1016/j.cub.2012.09.036.
Baranova, E.A. & Dashchenko, O.I. (1992) Three New Nematode Species of the Subfamily Hypodontolaiminae (Chromadorida, Chromadoridae) (Tri Novykh Vida Nematod Podsemeistva Hypodontolaiminae (Chromadorida, Chromadoridae). Zoologicheskii Zhurnal, 71 (10), 12–18.
Blome, D. (1982) Systematik der Nematoda eines Sandstrandes der Nordseeinsel Sylt. Mikrofauna des Meeresbodens, 86, 1–194.
Blome, D. & Schrage, M. (1985) Freilebende Nematodes aus der Antarktis. Veroffentlichungen des Instituts fur Meeresforschung in Bremerhaven, 21, 71–96.
Boucher, G. (1973) Nématodes libres marins des Iles Hautes de Polynésie I. Comesomatidae et Axonolaimidae. Cahiers du Pacifique, 17, 205–231.
Boucher, G. & Helléouët, M.N. (1977) Nématodes des sables fins infralittoraux de la Pierre Noire (Manche occidentale). III. Araeolaimida et Monhysterida. Bulletin du Museum National d’Histoire Naturelle, Paris, 427, 85–122.
Brunetti, B. (1949) Contributo alla conoscenza dei Nematodi del M. Tirreno. II. Alcune specie appartenenti alle famiglie: Enoplidae, Cyatholaimidae, Chromadoridae, Axonolaimidae. Monitore Zoologico Italiano, 57, 41–59.
Bütschli, O. (1874) Zur Kenntniss der freilebenden Nematoden, insbesondere der des Kieler Hafens. Abhandlungen, Herausgegeben von der Senckenbergischen Naturforschenden Gesellschaft, 9, 236–292.
Chitwood, B.G. (1933) A revised classification of the Nematoda. The Journal of Parasitology, Papers in Helminthology, Ninth Annual Meeting, 20 (2), 15–148.
Chitwood B.G. (1936) Some marine nematodes from North Carolina. Proceedings of the Helminthological Society of Washington, D.C., 3, 1–16.
Chitwood, B.G. (1951) North American marine nematodes. Texas Journal of Science, 3 (4), 617–672.
Cobb, N.A. (1933) New nemic genera and species, with taxonomic notes. Journal of Parasitology, 10, 81–94.
https://doi.org/10.2307/3272166
Coomans A. (1979) A proposal for a more precise terminology of the body regions of a nematode. Annales de la Société Royale Zoologique de Belgique, 108, 115–117.
Coomans, A. & Eyualem-Abebe, A. (2006) Order Monhysterida. In: Eyualem-Abebe Traunspurger, W. & Andràssy, I. (Eds.), Freshwater nematodes: ecology and taxonomy. CABI Publishing, Wallingford, pp. 574–603.
https://doi.org/10.1079/9780851990095.0574
Crites, I.L. (1961) Some free-living marine nematodes from the sand beaches of Piver’s Island, North Carolina. Journal of the Elisha Mitchell Scientific Society, 77, 75–80.
De Coninck, L.A. (1965) Classe des Nématodes–Systématique des Nématodes et sous-classe des Adenophorea. Traité de Zoologie, 4, 586–681.
De Coninck, L.A. & Schuurmans Stekhoven, J.H. (1933) The freeliving marine nemas of the Belgian coast. II. With general remarks on the structure and the system of nemas. Mémoires du Musée Royal d’Histoire Naturelle de Belgique, 58, 3–163.
De Grisse, A.T. (1969) Redescription ou modification de quelques techniques utilisés dans l’étude des nématodes phytoparasitaires. Mededelingen van de Rijksfakulteit Landbouwwetenschappen te Gent, 34, 251–369.
De Ley P., Decraemer W. & Eyualem-Abebe (2006) Introduction: summary of present knowledge and research addressing the ecology and taxonomy of freshwater nematodes. In: Eyualem-Abebe Traunspurger, W. & Andràssy, I. (Eds.), Freshwater nematodes: ecology and taxonomy. CABI Publishing, Wallingford, pp. 3–30.
https://doi.org/10.1079/9780851990095.0003
Decraemer, W. & Smol, N. (2006) Orders Chromadorida, Desmodorida and Desmoscolecida. In Eyualem-Abebe Traunspurger, W. & Andràssy, I. (Eds.), Freshwater nematodes: ecology and taxonomy. CABI Publishing, Wallingford, pp. 3–30.
https://doi.org/10.1079/9780851990095.0497
Ditlevsen, H. (1918) Marine freeliving nematodes from Danish waters. Videnskabelige Meddelelser Dansk Naturhistorisk Forening, 70 (7), 147–214.
Filipjev, I. N. (1917) Un Nématode libre nouveau de la mer Caspienne, Chromadorissa gen. nov. Chromadoridae, Chromadorini) (in Russian French Res.) Russkii Zoologicheskii Zhurnal, 2, 24–30.
Filipjev, I.N. (1918a) 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, 2, 1–203.
Filipjev, I.N. (1918b) Free-living marine nematodes of the Sevastopol area (in Russian). Transactions of the Zoological Laboratory and the Sevastopol Biological Station of the Russian Academy of Sciences, Series 2, 4, 1–350.
Filipjev, I.N. (1922) New data about free-living nematodes of the Black Sea. Transactions of Stavropol Agricultural Institute, 1, 83–184.
Filipjev, I.N. (1929) Classification of freeliving Nematoda and relations to parasitic forms. Journal of Parasitology, 15, 281–282.
Filipjev, I.N. (1934) The classification of the free-living nematodes and their relation to the parasitic nematodes. Smithsonian Miscellaneous Collections, 89 (6), 1–63.
Fonseca, G. & Bezerra, T.N. (2014) Order Monhysterida Filipjev, 1929. In: Schmidt-Rhaesa, A. (Eds.), Handbook of Zoology. Gastrotricha, Cycloneuralia, Gnathifera. Vol. 2. Nematoda. De Gruyter, Hamburg, pp.435– 465.
Gagarin, V.G. & Thanh Nguyen, Vu. (2010) Three new species of free-living marine nematodes of the order Desmodorida (Nematoda) from Vietnam. Zoologicheskii Zhurnal, 89 (4), 398–406.
Galtsova, V.V. (1976) [Free-living marine nematodes as components of the meiofauna of the Chupa Bay, White Sea]. Issledovaniya Fauny Morei (Nematody i ikh rol’ v meiobentose), 15, 165–270.
Gerlach, S.A. (1951a) Nematoden aus der Famìlie der Chromadoridae von den deutschen Küsten. Kieler Meeresforschung, 8 (1), 106–132.
Gerlach S.A. (1951b) Revision der Metachromadoracea einer Gruppe freilebender mariner Nematoden. Kieler Meeresforschungen, 8, 59–75.
Gerlach, S. A. (1955) Zur Kenntnis der freilebenden marinen Nematoden von San Salvador. Zeitschrift für wissenschaftliche Zoologie, 158 (Heft 2–4), 249–303.
Gerlach, S.A. (1956a) Die Nematodenbesiedlung des tropischen Brandungsstrandes von Pernambuco. Brasilianische Meeres- Nematoden II. Kieler Meeresforschung, 12, 202–218.
Gerlach, S.A. (1956b) Brasilianische Meeres-Nematoden I. Boletim do Instituto Oceanográfico, São Paulo Tomo, 5 (1–2), 3–69.
Gerlach, S.A. (1957) Marine Nematoden aus dem MangroveGebiet von Cananéia (Brasilianische Meeres-Nematoden III). Abhandlungen der Mathematisch-Naturwissenschaftlichen Klasse, 5, 129–176
Hauquier, F., Verleyen, E., Tytgat, B. & Vanreusel. A. (2018) Regional-scale drivers of marine nematode distribution in Southern Ocean continental shelf sediments. Progress in Oceanography, 165, 1–10.
https://doi.org/10.1016/j.pocean.2018.04.005
Hopper, B.E. (1961) Marine nematodes from the coast line of the Gulf of Mexico. Canadian Journal of Zoology, 39, 183–199.
https://doi.org/10.1139/z61-023
Hopper, B.E. (1963) Marine nematodes from the coast line of the Gulf of Mexico. III. Additional species from Gulf Shores, Alabama. Canadian Journal of Zoology, 41, 841–863.
https://doi.org/10.1139/z63-056
Hopper, B.E. (1968) Marine Nematodes of Canada I. Prince Edward Island. Canadian Journal of Zoology, 46 (6), 1103–1111.
https://doi.org/10.1139/z68-158
Hopper, E.H. & Meyers, S.P. (1967) Foliicolous marine nematodes on turtle grass, Thalassia testudinum König, in Biscay bay, Florida. Bulletin of Marine Science, 17, 471–517.
Hourston, M. & Warwick, M.M. (2010) New species of freeliving aquatic nematodes from southwestern Australia (Nematoda: Axonolaimidae and Desmodoridae). Records of the Western Australia Museum, 26, 42–69.
https://doi.org/10.18195/issn.0312-3162.26(1).2010.042-069
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
Inglis, W.G. (1961) Free-living nematodes from South Africa. Bulletin of the British Museum of Natural History, 7, 291–319.
Inglis, W.G. (1962) Marine nematode from a Banyulus-sur-mer: aith a review of the genus Eurystomina. Bulletin of the British Museum of Natural History, 8, 209–287.
Jensen, P. & Gerlach, S.A. (1976) Three new nematodes from Bermuda. Veröffentlichungen des Instituts für Meeresforschung in Bremerhaven, 16, 31–44.
Keppner, E.J. (1988) Six New Species of Free-Living Marine Nematodes (Nematoda: Araeolaimida: Enoplida) from Two Estuaries in Northwest Florida, U.S.A. Transactions of the American Microscopical Society, 107 (1), 79–95.
https://doi.org/10.2307/3226410
Kito, K. (1978) Studies on the free-living marine nematodes from Hokkaido, III. Journal of the Faculty of Science, Hokkaido University. Series 6, Zoology, 21 (2), 248–261.
Leduc, D. & Zhao, Z.Q. (2016) Review of the genus Odontophora (Nematoda: Axonolaimidae), with a key to valid species and description of Odontophora atrox sp. n. from the New Zealand coast. Nematology, 18 (10), 1125–1139.
https://doi.org/10.1163/15685411-00003018
Levin, L.A., Etter, R.J., Rex, M.A., Gooday, A.J., Smith, C.R., Pineda, J., Stuart, C.T., Hessler, R.R., & Pawson, D. (2001) Environmental influences on regional deep-sea species diversity. Annual Review of Ecology, Evolution and Systematics, 32, 51–93.
https://doi.org/10.1146/annurev.ecolsys.32.081501.114002
Lins, L., Leliaert, F., Riehl, T., Ramalho, S.P., Cordova, E.A., Esteves, A.M. & Vanreusel, A. (2017) Evaluating environmental drivers of spatial variability in free-living nematode assemblages along the Portuguese margin. Biogeosciences, 14, 651–669.
https://doi.org/10.5194/bg-14-651-2017
Liu, X.S., Zhang, Z.N. & Huang, Y. (2007) Sublittoral meiofauna with particular reference to nematodes in the southern Yellow Sea, China. Estuarine, Coastal and Shelf Science, 71, 616–628.
https://doi.org/10.1016/j.ecss.2006.09.013
Lorenzen, S. (1971) Die Nematodenfauna im Verklappungsgebiet für Industrieabwässer nordwestlich von Helgoland: I. Araeolaimida und Monhysterida. Zoologischer Anzeiger, 187, 223–248.
Lorenzen, S. (1977) Revision der Xyalidae (freilebende Nematoden) auf der Grundlage einer kritischen Analyse von 56 Arten aus Nord- und Ostsee. Veröffentlichungen des Instituts für Meeresforschung in Bremerhaven, 16, 197–261.
Luc, M. & De Coninck, L.A. (1959) Nématodes libres marins de la région de Roscoff. Archives de Zoologie Expérimentale et Générale, 98, 103–165.
de Man, J.G. (1886) Anatomische Untersuchungen über freilebende Nordsee-Nematoden. Verlag von Paul Frohberg, Leipzig, 82 pp.
Maria, T.F., Smol, N. & Esteves, A.M. (2014) Two new species of Metachromadora (Nematoda: Desmodoridae) from Guanabara Bay, Rio de Janeiro, Brazil, and a revised dichotomous key to the genus. Journal of the Marine Biological Association of the United Kingdom, 94 (1), 105–114.
https://doi.org/10.1017/S0025315413001161
Muthumbi, A. & Vincx, M. (1998) Chromadoridae (Chromadorida: Nematoda) from the Indian Ocean: Description of new and known species. Hydrobiologia, 364, 119–153.
https://doi.org/10.1023/A:1003109929194
Muthumbi, A. & Vanreusel, A. (2006) Order Araeolaimida. In: Eyualem-Abebe Traunspurger, W. & Andràssy, I. (Eds.), Freshwater nematodes: ecology and taxonomy. CABI Publishing, Wallingford, pp. 604–610.
https://doi.org/10.1079/9780851990095.0604
Nichols, J.A. & Musselman, M.R. (1979) Free-living marine nematodes from sandy sediments off the coast of Peru. Cahiers de Biologie Marine, 20, 449–459.
Ott, J.A. (1972) Twelve new species of nematodes from an intertidal sandflat in North Carolina. International Revue der Gesamten Hydrobiologie und Hydrographie, 57, 463–496.
https://doi.org/10.1002/iroh.19720570307
Pastor de Ward, C.T. (1984) Nematodes marinos de la Ria Deseado (Axonolaimoidea: Axonolaimidae, Diplopeltidae, Comesomatidae) Santa Cruz, Argentina. Centro Patagonico Contribucion, 86, 1–21.
Pastor de Ward, C. (2004) New species of Hopperia (Nematoda, Comesomatidae) and Metachromadora (Nematoda, Desmodoridae) from Patagonia, Chubut, Argentina. Zootaxa, 542, 1–15.
https://doi.org/10.11646/zootaxa.542.1.1
Platonova, T.A. (1971) Free-living marine nematodes from the Possjet bay of the Sea of Japan. Isledovanija fauni morjei, 8 (16), 72–108.
Sampaio, L., Mamede, R., Ricardo, F., Magalhães, L., Rocha, H., Martins, R., Dauvin, J.C., Rodrigues, A.M. & Quintino, V. (2016) Soft-sediment crustacean diversity and distribution along the Portuguese continental shelf. Journal of Marine Systems, 163, 43–60.
https://doi.org/10.1016/j.jmarsys.2016.06.011
Schulz, E. (1938) Beiträge zur Morphologie und Systematik freilebender mariner Nematoden I. Kieler Meeresforschungen, 3, 114–121.
Schuurmans Stekhoven, J.H. & De Coninck, L.A. (1933) Diagnoses of new Belgian marine nemas. Bulletin du Musée Royal d’Histoire Naturelle de Belgique, 9, 1–15.
Tchesunov, A.V. (2014) Order Desmodorida De Coninck, 1965. In: Schmidt-Rhaesa, A. (Eds.), Handbook of Zoology. Gastrotricha, Cycloneuralia, Gnathifera. Vol. 2. Nematoda. De Gruyter, Hamburg, pp. 399–434.
Timm, R.W. (1952) A survey of the marine nematodes of Chesapeake Bay, Maryland. Contr. Chesapeake Biological Laboratory, 95, 1–70.
Timm, R.W. (1961) The Marine Nematodes of the Bay of Bengal. Proceedings of the Pakistan Academy of Sciences, 1 (1), 25– 88.
Venekey, V., Gheller, P.F., Kandratavicius, N., Cunha, B.P., Vilas-Boas, A.N., Fonseca, G. & Maria, T.F. (2019) The state of the art of Chromadoridae (Nematoda, Chromadorida): a historical review, diagnoses and comments about valid and dubious genera and a list of valid species. Zootaxa, 4578 (1), 001–067.
https://doi.org/10.11646/zootaxa.4578.1.1
Verschelde, D. & Vincx, M. (1996) Four new species of the family Desmodoridae (Nematoda, Desmodoroidea) from Kenya. Zoologica Scripta, 25, 1–20.
https://doi.org/10.1111/j.1463-6409.1996.tb00148.x
Vitiello, P. (1970) Nématodes libres marins des vases profondes du Golfe du Lion. III. Monhysterida, Araeolaimida, Desmodorida. Téthys, 2, 647–690.
Vitiello, P. (1971) Nématodes libres marins des vases profondes du Golfe de Lion III. Monhysterida, Araeolaimida, Desmodorida. Thetys, 2, 647–690.
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.
Warwick, R.M., Platt, H.M. & Somerfield, P.J. (1998) Free-living marine nematodes. Part III: British Monhysterids. In: Synopsis of the British fauna. New Series. No 53. Field Studies Council, Shrewsbury, pp. 1–296.
Wieser, W. (1954) Free-living marine nematodes II. Chromadoroidea. Report from the Lund University Chile Expedition. Acta University Lund, Neue Folge, 50 (16), 1–148.
Wieser, W. (1956) Free-living marine nematodes III. Axonolaimoidea and Mohysteroidea. Acta Universitets Lund, 52, 1– 115.
Wieser, W. (1959) Free-living nematodes and other small invertebrates of Puget Sound beaches. University of Washington Publications in Biology, 19, 1–179.
Wieser, W. & Hopper, B. (1967) Marine nematodes of the east coast of North America. I. Florida. Bulletin of the Museum of Comparative Zoology, 135 (5), 239–344.