Hostname: page-component-cd9895bd7-7cvxr Total loading time: 0 Render date: 2024-12-23T09:08:29.643Z Has data issue: false hasContentIssue false
  • English
  • Français

Review of Onyx Cobb (Nematoda: Desmodoridae) with description of two new species from the Yellow Sea, China

Published online by Cambridge University Press:  27 April 2015

Yong Huang  and
Haixia Wang
Yong Huang*
Affiliation:
College of Life Sciences, Liaocheng University, 1 Hunan Road, Liaocheng, 252059, P. R. China Key Laboratory of Ecology and Biodiversity of Colleges and Universities in Shandong Province, Liaocheng University, Liaocheng, 252059, P. R. China
Haixia Wang
Affiliation:
College of Life Sciences, Liaocheng University, 1 Hunan Road, Liaocheng, 252059, P. R. China
*
Corresponding author: Y. Huang, College of Life Science, Liaocheng University1 Hunan Road, Liaocheng, Shandong 252000, P. R. China E-mail: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

Genus Onyx Cobb, 1891 has been reviewed and 19 valid species including two new species have been reported in the world. Two new species, Onyx rizhaoensis sp. nov. and Onyx minor sp. nov. from the Yellow Sea coast are described and illustrated. In addition to the genus characters Onyx rizhaoensis sp. nov. has relatively long cephalic setae; a single loop-shaped amphidial fovea; 12 S-shaped tubular precloacal supplements in 10 + 2 arrangement, posterior 10 closely spaced, anterior two set apart; female vulva situated at almost midpoint of the body. Onyx minor sp. nov. is characterized by a relatively small body for the genus (body length usually shorter than 800 μm); gubernaculum slender parallel to spicules and with a hooked dorsal apophysis; 12 S-shaped tubular precloacal supplements fairly evenly spaced; female vulva situated at about midbody. At the same time, a dichotomous key for Onyx males is proposed.

Keywords

free-living marine nematodeOnyx rizhaoensis sp. nov.Onyx minor sp. nov.taxonomy
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 95 , Issue 6 , September 2015 , pp. 1127 - 1132
Copyright
Copyright © Marine Biological Association of the United Kingdom 2015 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Blome, D. and Riemann, F. (1994) Sandy beach meiofauna of eastern Australia (Southern Queensland and New South Wales). Revision of the nematode genus Onyx Cobb, 1891, with a description of three new species. Invertebrate Taxonomy 8, 1483–1492.CrossRefGoogle Scholar
Cobb, N.A. (1891) Onyx and Dipeltis: new nematode genera, with a note on Dorylaimus. Proceeding of the Linnean Society of New South Wales 6, 143–158.CrossRefGoogle Scholar
Gerlach, S.A. and Riemann, F. (1973) The Bremerhaven checklist of aquatic nematodes. A catalogue of Nematoda Adenophorea excluding the Dorylaimida. Veröffentlichungen des Instituts für Meeresforschung in Bremerhaven, Suppl. 4.Google Scholar
Higgins, R.P. and Thiel, H. (1988) Introduction to the study of meiofauna. Washington, DC: Smithsonian Institution Press.Google Scholar
Hourston, M. and Warwick, R.M. (2010) New species of free-living aquatic nematodes from south-western Australia (Nematoda: Axonolaimidae and Desmodoridae). Records of the Western Australian Museum 26, 42–69.CrossRefGoogle Scholar
Huang, Y. (2008) List of China's marine invertebrates by Ruiyu, Liu. Beijing: Science Press.Google Scholar
Huang, Y. and Cheng, B. (2012) Three new free-living marine nematode species of the genus Micoletzkyia from China Sea. Journal of the Marine Biological Association of the United Kingdom 92, 941–945.CrossRefGoogle Scholar
Huang, Y. and Xu, K.D. (2013) Two new species of Genus Paracyatholaimus Micoletzky (Nematoda: Cyatholaimidae) from the Yellow Sea. Journal of Natural History 47, 21–22: 1381–1392.CrossRefGoogle Scholar
Huang, Y. and Zhang, Y. (2014) Review of Pomponema Cobb (Nematoda: Cyatholaimidae) with description of a new species from China Sea. Cahiers de Biologie Marine 55, 267–273.Google Scholar
Jonge, V.N. and Bouwman, L.A. (1977) A simple density separation technique for quantitative isolation of meiobenthos using the colloidal silica Ludox-™. Marine Biology 42, 143–148.CrossRefGoogle Scholar
Nasira, R., Rehmat, B. and Shahina, F. (2011) Description of Onyx balochiensis N. sp. (Nematoda: Hromadorida) with a compendium of the genus Onyx Cobb, 1891 from Pakistan. Pakistan Journal of Nematology 29, 1–13.Google Scholar
Platt, H.M. and Warwick, R.M. (1988) Free-living marine nematodes. Part II: British Chromadorids (Synopses of the British Fauna New Series No. 38). Leiden: E.J. Brill/W. Backhuys.CrossRefGoogle Scholar
Tu, N.D., Smol, N., Vanreusel, A. and Thanh, N.V. (2011) Six new species of the genus Onyx Cobb, 1981 (Nematoda: Desmodoridae) from coastal areas in Vietnam. Russian Journal of Nematology 19(1), 1–20.Google Scholar