Two new free-living nematode species (Trefusiina: Trefusiidae) from the Chatham Rise crest, Southwest Pacific Ocean

  • Daniel Leduc National Institute of Water and Atmospheric Research, Private Bag 14-901, Kilbirnie, Wellington, New Zealand
Keywords: Trefusia piperata sp. nov., Trefusialaimus idrisi sp. nov., New Zealand, continental slope, dichotomous key, sandy sediment

Abstract

Two new species of the family Trefusiidae, viz., Trefusia piperata sp. nov. and Trefusialaimus idrisi sp. nov., are described from the crest of the Chatham Rise, Southwest Pacific Ocean (350 m water depth). The present study provides the first species records for this family in the region. Trefusia and Trefusialaimus comprise twenty and three valid species, respectively. A key to males of Trefusia is provided.

References

Andrássy I. 2007. Free living nematodes of Hungary, II (Nematoda errantia). Pedozoologica Hungarica 4: 1-496.

Bussau C. 1993. Taxonomische und ökologische Untersuchungen an Nematoden des Peru-Beckens. PhD dissertation, Kiel.

Chitwood B.G. & Chitwood M.B. 1977. Introduction to Nematology. University Park Press, Baltimore.

Coomans A., Verschuren D. & Vanderhaeghen R. 1988. The demanian system, traumatic insemination and reproductive strategy in Oncholaimus oxyuris Ditlevsen (Nematoda, Oncholaimina). Zoologica Scripta 17: 15-23. http://dx.doi.org/10.1111/j.1463-6409.1988.tb00083.x

Keppner E.J. 1992. Some free-living nematodes from Northwest Florida, U.S.A. with description of three new species (Nematoda: Chromadorida, Trefussida). Transactions of the American Microscopical Society 111: 199-210. http://www.jstor.org/stable/3226609

Leduc D. & Gwyther J. 2008. Description of new species of Setosabatieria and Desmolaimus (Nema-toda: Monhysterida) and a checklist of New Zealand free-living marine nematode species. New Zealand Journal of Marine and Freshwater Research 42: 339-362. http://dx.doi.org/10.1080/00288330809509962

Leduc D. & Pilditch C. 2013. Effect of a physical disturbance event on deep-sea nematode community structure and ecosystem function. Journal of Experimental Marine Biology and Ecology 440: 35-41. http://dx.doi.org/10.1016/j.jembe.2012.11.015

Leduc D., Rowden A.A., Bowden D.A., Nodder S.D., Probert P.K., Pilditch C.A., Duineveld G.C.A. & Witbaard R. 2012a. Nematode beta diversity on the continental slope of New Zealand: spatial patterns and environmental drivers. Marine Ecology Progress Series 454: 37-52. http://dx.doi.org/10.3354/meps09690

Leduc D., Rowden A.A., Bowden D.A., Probert P.K., Pilditch C.A. & Nodder S.D. 2012b. Unimodal relationship between biomass and species richness of deep-sea nematodes: implications for the link between productivity and diversity. Marine Ecology Progress Series 454: 53-64. http://dx.doi.org/10.3354/meps09609

Miljutin D.M., Gad G., Miljutina M.M., Mokievsky V.O., Fonseca-Genevois V., Esteves A.M. 2010. The state of knowledge on deep-sea nematode taxonomy: how many valid species are known down there? Marine Biodiversity 40: 143-159. http://dx.doi.org/10.1007/s12526-010-0041-4

Riemann F. 1966. Die Gattung Trefusia De Man, 1893 (Enoplida: Oxystominidae). Beiträge zum natürlichen System freilebender Nematoden. Veröffentlichungen zur Meeresforschung Bremerhaven 10: 1-29.

Riemann F. 1974. Trefusialaimus nov. gen. (Nematoda) aus der Iberischen Tiefsee mit Diskussion des männlichen Genitalapparates von Enoplida Tripyloidea. Meteor Forschungsergebnisse 18: 39-43.

Riera R., Núñez J. & del Carmen Brito M. 2010. Trefusiids (Nematoda, Trefusiida) from the Canary Islands. Revista de la Academia Canaria de Ciencias 22(3): 103-109.

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

Van Gaever S., Vanreusel A., Hughes J.A., Bett B. & Kirikoualis K. 2004. The macro- and micro-scale patchiness of meiobenthos associated with the Darwin Mounds (north-east Atlantic). Journal of the Marine Biological Association of the United Kingdom 84: 547-556. http://dx.doi.org/10.1017/S0025315404009555h

Vitiello P. 1970. Nématodes libres marins des vases profondes du Golfe du Lion. I. Enoplida. Téthys 2: 139-210.

Published
2013-09-05
How to Cite
Leduc, D. (2013). Two new free-living nematode species (Trefusiina: Trefusiidae) from the Chatham Rise crest, Southwest Pacific Ocean. European Journal of Taxonomy, (55). https://doi.org/10.5852/ejt.2013.55