New Spirinia and Stygodesmodora species (Nematoda, Spiriniinae) from the Southwest Pacific, and a revision of the related genera Spirinia, Chromaspirina and Perspiria

Daniel Leduc, Dominick Verschelde

Abstract


Two new species of the family Desmodoridae are described from the upper continental slope of New Zealand, Southwest Pacific, and the genera Spirinia, Chromaspirina and Perspiria are revised. Spirinia verecunda sp. nov. is characterised by a short, stout body, cuticle covered in minute, hair-like structures, unispiral amphideal aperture and cryptospiral amphideal fovea, buccal cavity with small dorsal tooth and minute subventral teeth, eight oblong glands surrounding anterior portion of pharynx, large sperm cells, spicules with weak capitulum, and the absence of precloacal supplements. Stygodesmodora confusa sp. nov. is characterised by a relatively short body, spiral amphids with 1.2–1.4 turns, cephalic setae situated at or slightly posterior to mid-level of amphid, and males with four precloacal supplements consisting of short setae on wide bases. Like other species of the genus, S. confusa sp. nov. is characterised by an annulated head region, but in some specimens the cuticle annulations are restricted to the dorsal and ventral sides of the head. S. confusa sp. nov. shows similarities with species of other desmodorid genera (i.e., Echinodesmodora, Bolbonema), but can be differentiated from them by the presence of an annulated head region and amphideal plates. The genera Spirinia, Chromaspirina and Perspiria have very similar morphologies and differ mainly in the size and structure of the buccal cavity (Spirinia vs Chromaspirina) or the shape of the tail and placement of the amphids relative to the cuticle annulations (Spirinia vs Perspiria); their diagnoses are clarified and some nomenclatural changes are proposed to eliminate overlap in the definitions of these genera.

Keywords


Desmodoridae;deep-sea;meiofauna;Chatham Rise;southern Hikurangi Margin

Full Text:

PDF PDF/A


DOI: https://doi.org/10.5852/ejt.2015.118

References


Armenteros M., Ruiz-Abierno A. & Decraemer W. 2014. Revision of Desmodorinae and Spiriniinae (Nematoda: Desmodoridae) with redescription of eight known species. European Journal of Taxonomy 96: 1–32. http://dx.doi.org/10.5852/ejt.2014.96

Bastian H.C. 1865. Monograph of the Anguillulidae, or free nematoids, marine, land, and freshwater; with descriptions of 100 new species. The Transactions of the Linnean Society of London 25: 73–184.

Blome D. 1982. Systematik der Nematoda eines Sandstrandes der Nordseeinsel Sylt Mikro-fauna des Meeresbodens 86: 1–194.

Boucher G. 1975. Nématodes des sables fins infralittoraux de la Pierre Noire (Manche Occi-dentale). I. Desmodorida. Bulletin de Muséum National d’Histoire Naturelle 285: 101–128.

Bussau C. 1993. Taxonomische und ökologische Untersuchungen an Nematoden des Peru-Beckens. PhD Thesis, Mathematisch-Naturwissenschaftliche Fakultät der Christian-Albrechts-Universität zu Kiel, Germany.

Castro F.J.V., Bezerra T.N.C., Da Silva M.C. & Fonsêca-Genevois V. 2006. Spirinia elongata, sp. nov. (Nematoda, Desmodoridae) from Pina Basin, Pernambuco, Brazil. Zootaxa 1121: 53–68.

Cavalcanti M.F., Da Silva M.C., Da Fonsêca-Genevois V. 2009. Spirodesma magdae nov. gen. nov. sp. (Nematoda: Desmodoridae) from the Brazilian deep sea (Campos Basin, Rio de Janeiro, Brazil). Zootaxa 2096: 109–118.

Chitwood B.G. 1936. Some marine nematodes from North Carolina. Proceedings of the Helminthological Society of Washington 3: 1–16.

Cobb N.A. 1920. One hundred new nemas (type species of 100 new genera). Contributions to a Science of Nematology 9: 217–343.

Coles J.W. 1987. Observations on the marine nematode genus Spirinia Gerlach, 1963 (Desmodoridae: Spiriniinae) with descriptions of two new species. Bulletin of the British Museum of Natural History (Zoology) 53: 79–101.

De Coninck L.A. 1943. Sur quelques espèces nouvelles de nématodes libres des eaux et des terres saumâtres de l’Islande. Biologisch Jaarboek 10: 193–220.

De Coninck L.A. 1965. Classe des Nématodes: Systematique des nématodes et sous-classe des Adenophorea. In: Grassé P.P. (ed.) Traité de Zoologie 4: 586–681.

Decraemer W. & Smol N. 2006. Orders Chromadorida, Desmodorida and Desmoscolecida. In: Abebe E.-A., Transpurger W. & Andrassy I. (eds) Freshwater Nematodes: Ecology and Taxonomy: 497–573. UK CABI Publishing, Cambridge.

Gerlach S.A. 1953. Recherches sur la faune des eaux interstitielles de Madagascar. III. Sur quelques nématodes libres des eaux souterraines littorales de Madagascar. Mémoires de l’Institut Scientifique de Madagascar 8: 73–86.

Gerlach S.A. 1954. Nouveaux nématodes libres des eaux souterraines littorales françaises. Vie et Milieu 4: 95–110.

Gerlach S.A. 1956. Die Nematodenbesiedlung des tropischen Brandungsstrandes von Pernambuco. Brasilianische Meeres-Nematoden II. Kieler Meeresforschungen 12: 202–218.

Gerlach S.A. 1957. Marine Nematoden von der Kongo-Mündung. Bulletin de l'Institut Royal des Sciences Naturelles de Belgique 33: 1–28.

Gerlach S.A. 1963. Frielebende Meeresnematoden von den Malediven II. Kieler Meeresforschungen 19: 67–103.

Gerlach S.A. 1965. Freilebende Meeresnematoden aus der Gezeitenzone von Spitsbergen. Veröffentlichungen des Instituts für Meeresforschung in Bremerhaven 9: 109–172.

Gerlach S.A. & Murphy D.G. 1965. Die Familiengruppen-Namen der freilebenden Nematoden-Adenophorea (Aphasmidia). Zoologischer Anzeiger 175: 211–216.

Inglis W.G. 1968. Interstitial nematodes from St. Vincent's Bay, New Caledonia: Expédition française sur les récifs coralliens de la Nouvelle Calédonie. Editions de la Fondation Singer-Polignac, Occasional Publications 2: 29–74.

Jensen P. 1978. Revision of Microlaimidae, erection of Molgolaimidae fam. n., and remarks on the systematic position of Paramicrolaimus (Nematoda, Desmodorida). Zoologica Scripta 7: 159–173. http://dx.doi.org/10.1111/j.1463-6409.1978.tb00599.x

Leduc D., Verschelde D. 2013. One new genus and two new free-living nematode species (Desmodorida, Desmodoridae) from the continental margin of New Zealand, Southwest Pacific Ocean. Zootaxa 3609: 274–290. http://dx.doi.org/10.11646/zootaxa.3609.3.2

Lorenzen S. 1981. Entwurf eines phylogenetischen Systems der freilebenden Nematoden. Veröffentlichungen des Instituts für Meeresforschung in Bremerhaven, Supplement 7: 1–472.

Luc M. & De Coninck L.A.P. 1959. Nématodes libres marins de la region de Roscoff. Archives de Zoologie Expérimentale et Générale 98: 108–166.

Maria T.F., Esteves A.M., Smol N., Vanreusel A. & Decraemer W. 2009. Chromaspirina guanabarensis sp. n. (Nematoda: Desmodoridae) and a new illustrated dichotomous key to Chromaspirina species. Zootaxa 2092: 21–36.

Murphy R.J., Pinkerton M.H., Richardson K.M, Bradford-Grieve J.M. & Boyd P.W. 2001. Phytoplankton distributions around New Zealand derived from SeaWiFS remotely-sensed ocean colour data. New Zealand Journal of Marine and Freshwater Research 35: 343–362. http://dx.doi.org/10.1080/00288330.2001.9517005

Muthumbi A., Verschelde D. & Vincx M. 1995. New Desmodoridae (Nematoda: Desmodoroidea): three new species from Ceriops mangrove sediments (Kenya) and one related new species from the North Sea. Cahiers de Biologie Marine 36: 181–195.

Ott J.A. 1977. New freeliving marine nematodes from the West Atlantic. I. Four new species from Bermuda with a discussion of the genera Cytolaimium and Rhabdocoma Cobb, 1920. Zoologischer Anzeiger 198: 120–138.

Silva M.C., Castro F.J.V., Cavalcanti M.F. & Fonsêca-Genevois V. 2009. Spirinia lara sp. n. and Spirinia sophia sp. n. (Nematoda, Desmodoridae) from the Brazilian continental margin (Campos Basin, Rio de Janeiro). Zootaxa 2081: 31-45.

Somerfield P. & Warwick R.M. 1996. Meiofauna in Marine Pollution Monitoring Programmes: A Laboratory Manual. Lowestoft, Ministry of Ariculture, Fisheries, and Food.

Verschelde D. & Vincx M. 1996. Four new species of the family Desmodoridae (Nematoda, Desmodoroidea) from Kenya. Zoologica Scripta 25: 1–20. http://dx.doi.org/10.1111/j.1463-6409.1996.tb00148.x

Verschelde D., Gourbault N. & Vincx M. 1998. Revision of Desmodora with descriptions of new desmodorids (Nematoda) from hydrothermal vents of the Pacific. Journal of the Marine Biological Association of the United Kingdom 78: 75–112. http://dx.doi.org/10.1017/S0025315400039977

Verschelde D., Nicholas W. & Vincx M. 2006. A review of the genera Croconema Cobb, 1920 and Pseudochromadora Daday, 1899 (Nematoda, Desmodoroidea): new species from the coasts of Kenya and Australia. Hydrobiologia 571: 17–40. http.//dx.doi.org/10.1007/s10750-006-0194-0

Vincx M. & Gourbault N. 1989. Desmodoridae from the Bay of Morlaix (Brittany) and the Southern Bight of the North Sea. Cahiers de Biologie Marine 30: 103–114.

Vitiello P. 1971. Nématodes libres marins des vases profondes du Golfe du Lion III. Monhysterida, Araeolaimida, Desmodorida. Tethys 2: 647–690.

Warwick R.M. 1970. Fourteen new species of free-living marine nematodes from the Exe estuary. Bulletin of the British Museum of Natural History (Zoology) 19: 137–177.

Wieser W. 1954. Free-living nematodes II. Chromadoroidea. Lunds Universitets Arsskrift, N.F. Avd. 2 50 (16): 1–149.

Wieser W. & Hopper B. 1967. Marine nematodes of the east coast of North America. I. Florida. Bulletin of the Museum of Comparative Zoology 135: 239–343.

WoRMS Editorial Board. 2014. World Register of Marine Species. Available from http://www.marinespecies.org [accessed 11 February 2014].


Refbacks

  • There are currently no refbacks.


License URL: https://creativecommons.org/licenses/by/3.0/