Abstract
Two new species of free-living marine nematodes of the genera Hopperia and Nemanema are described from the sublittoral sediment of the East China Sea. Hopperia macramphida sp. nov. is characterized by having large amphidial fovea with five turns; arcuate spicules with enlarged proximal end and central internal lamella extending one third of spicule length from proximal end; gubernaculum with bent apophyses, six papilliform precloacal supplements; and conico-cylindrical tail with swollen tip and terminal setae. Nemanema minutum sp. nov. is characterized by relatively smaller body size in the genus; large oval amphidial fovea; conical tail; slender spicules with alae and hooked proximal end; ring-like gubernaculum; and papilliform precloacal supplements with three short setae. An updated dichotomous key is provided for the 17 species of Hopperia.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Campinas Bezerra T N, Vanreusel A, Decraemer W, et al. 2017. NeMys: world database of free-living marine nematodes. https://doi.org/nemys.ugent.be [2017-07-01]
Cobb N A. 1920. One hundred new nemas (type species of 100 new genera). Contributions to a Science of Nematology, 9: 217–343
de Man J G. 1922. Neue freilebende Nematoden aus der Zuidersee. Tijdschr ned dierk Vereen, 2(18): 124–134
Guo Yuqing, Chang Yu, Chen Yuzhen, et al. 2015. Description of a Marine Nematode Hopperia sinensis sp. nov. (Comesomatidae) from Mangrove Forests of Quanzhou, China, with a Pictorial Key to Hopperia Species. Journal of Ocean University of China, 14(6): 1111–1115
Jensen P. 1979. Revision of Comesomatidae (Nematoda). Zoologica Scripta, 8: 81–105
Jiang Weijun, Gao Qun, Wang Haixia, et al. 2016. Study on ecology of the meiofauna in the East China Sea. Journal of Liaocheng University (Nat Sci) (in Chinese), 29(2): 65–74
Jiang Weijun, Huang yong. 2015. Paragnomoxyala gen. nov. (Xyalidae, Monhysterida, Nematoda) from the East China Sea. Zootaxa, 4039(3): 467–474
Leduc D. 2012. Deep-sea nematodes (Comesomatidae) from the Southwest Pacific Ocean: five new species and three new species records. European Journal of Taxonomy, 24: 1–42
Platt H M, Warwick R M. 1983. Free-living marine nematodes: Part I. British Enoplids (Synopses of the British Fauna No. 28). Cambridge: Cambridge University Press, 307
Platt H M, Warwick R M. 1988. Free living marine nematodes: Part II. British Chromadoridas. In: Brill E J, Backhuys Dr W, eds. Synopses of the British Fauna (New Series), 38. Published for the Linnean Society of London and the Estuarine and Brackish-Water Sciences Association. Avon, Great Britain: Bath Press, 502
Vitiello P. 1969. Hopperia, nouveau genre de Nématode libre marin (Comesomatidae). Téthys, 1(2): 485–491
Acknowledgements
The authors are very thankful to all crew members of R/V Kexue Sanhao for their kind help in samples collection. The authors are sincerely grateful to Gao Qun for her slide making.
Author information
Authors and Affiliations
Corresponding author
Additional information
Foundation item: The National Natural Science Foundation of China under contract No. 41676146; the Natural Science Foundation of Shandong Province under contract No. ZR2014BM008.
Rights and permissions
About this article
Cite this article
Sun, Y., Huang, M. & Huang, Y. Two new species of free-living nematodes from the East China Sea. Acta Oceanol. Sin. 37, 148–151 (2018). https://doi.org/10.1007/s13131-018-1317-y
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s13131-018-1317-y