A new free-living nematode, <i>Actinonema falciforme</i> sp. nov. (Nematoda: Chromadoridae), from the continental shelf of the East China Sea

SHI Benze; YU Tingting; XU Kuidong

doi:10.1007/s13131-018-1318-x

Article Contents

Article Navigation > Acta Oceanologica Sinica > 2018 > 37(10): 152-156

SHI Benze, YU Tingting, XU Kuidong. A new free-living nematode, Actinonema falciforme sp. nov. (Nematoda: Chromadoridae), from the continental shelf of the East China Sea[J]. Acta Oceanologica Sinica, 2018, 37(10): 152-156. doi: 10.1007/s13131-018-1318-x

Citation:

SHI Benze, YU Tingting, XU Kuidong. A new free-living nematode, Actinonema falciforme sp. nov. (Nematoda: Chromadoridae), from the continental shelf of the East China Sea[J]. Acta Oceanologica Sinica, 2018, 37(10): 152-156. doi: 10.1007/s13131-018-1318-x

Citation:

PDF( 568 KB)

A new free-living nematode, Actinonema falciforme sp. nov. (Nematoda: Chromadoridae), from the continental shelf of the East China Sea

doi: 10.1007/s13131-018-1318-x

1.
Department of Marine Organism Taxonomy and Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
2.
Department of Marine Organism Taxonomy and Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology(Qingdao), Qingdao 266237, China;University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2017-08-13

Abstract

Abstract

Actinonema falciforme sp. nov. was discovered from the continental-shelf sediments of the East China Sea. It is characterized by six outer labial setae and four cephalic setae in one circle, complex and heterogeneous cuticular ornamentation with lateral differentiation, large and conspicuous amphideal fovea which is transversely oval-shaped, a single anterior testis, two opposed reflexed ovaries, falciform telamon (lateral pieces of gubernaculum), and the lack of spicule and gubernaculum. Within the genus Actinonema, only A. longicaudatum and the new species possess telamon and lack spicule and gubernaculum. Actinonema falciforme sp. nov. can be easily differentiated from A. longicaudatum by its much shorter body length, the peculiar shape of the telamon and a shorter tail.
- East China Sea,
- free-living marine nematodes,
- new species

FullText(HTML)

References(11)

References

Boucher G. 1976. Nématodes des sables fins infralittoraux de la Pierre Noire (Manche Occidentale): Ⅱ. Chromadorida. Bulletin du Muséum National d’Histoire Naturelle, 245(352): 26–30

Coomans A. 1979. Addendum I. A proposal for a more precise terminology of the body regions in the nematode. Annales de la Societe Royale Zoologique de Belgique, 108: 155–117

Decraemer W, Smol N. 2006. The chromadorida, desmodorida and desmoscolecida. In: Eyualem A, Andrássy I, Traunspurger W, eds. Freshwater Nematodes: Taxonomy and Ecology. Wallingford, UK: CABI Publishing, 497–573

Jensen P. 1991. Nine new and less known nematode species from the deep-sea benthos of the Norwegian Sea. Hydrobiologia, 222(1): 57–76, doi: 10.1007/BF00017500

Lorenzen S. 1994. The Phylogenetic Systematics of Freeliving Nematodes. London: Ray Society, 383

Muthumbi A W, Vincx M. 1998. Chromadoridae (Chromadorida: Nematoda) from the Indian Ocean: Difficulties in morphological identification of Actinonema Cobb, 1920 and Rhips Cobb, 1920. Hydrobiologia, 364(2): 155–167

Platt H M, Warwick R M. 1983. Free-living marine nematodes: I. British enoplids: pictorial key to world genera and notes for the identification of British species. In: Barnes R S K, Crothers J H, eds. Synopses of the British Fauna (New Series), no. 28. Cambridge: Cambridge University Press, 169–171

Platt H M, Zhang Z N. 1982. New species of marine nematodes from Loch Ewe, Scotland. Bulletin of the British Museum (Natural History), 42: 227–246

Tchesunov A. 2014. Order Chromadorida Chitwood, 1933. In: Schmidt-Rhaesa A, ed. Handbook of Zoology. Gastrotricha, Cycloneuralia, Gnathifera. Volume 2: Nematoda. Berlin, Boston: De Gruyter, 373–398

Vitiello P. 1970. Nématodes libres marins des vases profondes du Golfe du Lion: Ⅱ. Chromadorida. Tethys, 2: 449–500

Wieser W. 1954. Reports of the Lund University Chile Expedition 1948–49. 17. Free-living marine nematodes Ⅱ. Chromadoroidea. Lunds Universitets Årsskrift, Ny Foljd, Avdelningen 2, 50(16): 1–148

Relative Articles

Supplements(0)

Cited By

Proportional views