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Astomonema southwardorum sp. nov., a gutless nematode dominant in a methane seep area in the North Sea

Austen, M.C., Warwick, R.M. and Ryan, K.P. (1993) Astomonema southwardorum sp. nov., a gutless nematode dominant in a methane seep area in the North Sea. Journal of the Marine Biological Association of the United Kingdom, 73 (03). pp. 627-634.

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Abstract

A new species of mouthless and gutless free-living marine nematode, Astomonema southwardorum sp. nov., the dominant species from a methane seep pockmark in the North Sea, is described and illustrated. The new species is distinguished by its combination of short cephalic and cervical setae, with the latter being sparsely and irregularly distributed, and also in male specimens by its arrangement of precloacal and caudal setae and its postcloacal papillae. The genus Astomonema Ott, Rieger, Rieger & Enderes, 1982, is rediagnosed. Astomonema brevicauda (Vitiello, 1971) Vidakovik & Boucher, 1987, is considered to be a species inquirenda.

Item Type: Journal Article
Publisher: Cambridge University Press
Copyright: © Marine Biological Association of the United Kingdom 1993
URI: http://researchrepository.murdoch.edu.au/id/eprint/23334
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