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Three new species of free-living marine nematodes of the order Enoplida Filipjev, 1929 (Nematoda) from the Yellow Sea, China
Ban, S.; Sun, J.; Huang, Y. (2023). Three new species of free-living marine nematodes of the order Enoplida Filipjev, 1929 (Nematoda) from the Yellow Sea, China. J. Mar. Sci. Eng. 11(11): 2202. https://dx.doi.org/10.3390/jmse11112202
In: Journal of Marine Science and Engineering. MDPI: Basel. ISSN 2077-1312; e-ISSN 2077-1312, meer
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| Trefwoorden |
Taxa > Species > New taxa > New species
Belbolla octobulba Ban, Sun & Huang, 2023 [WoRMS]; Enoplida [WoRMS]; Ironella gracilis Ban, Sun & Huang, 2023 [WoRMS]; Oxystomina longiseta Allgén, 1947 [WoRMS]
Marien/Kust |
| Author keywords |
Belbolla octobulba sp. nov.; Ironella gracilis sp. nov.; Oxystomina longiseta sp. nov.; taxonomy; biodiversity; Shandong peninsula |
| Auteurs | | Top |
- Ban, S.
- Sun, J.
- Huang, Y.
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| Abstract |
Three new nematode species belonging to the order Enoplida were discovered in the muddy and sandy sediment along the Shandong peninsula coast of the Yellow Sea during a biodiversity investigation of marine nematodes in the Yellow Sea. They are named Belbolla octobulba sp. nov., Ironella gracilis sp. nov. and Oxystomina longiseta sp. nov. Belbolla octobulba sp. nov. is characterized by having eight pharyngeal bulbs; spicules arcuate, broad and even; gubernaculum with a pair of dorso-caudal apophyses, about a third of the length of spicule; and two winged precloacal supplements. Ironella gracilis sp. nov. differs from known species by body slender, buccal cavity divided into conical vestibulum and cylindrical posterior portion, three sclerotized teeth located in the vestibulum; both circles of outer labial setae and cephalic setae 10 µm apart; elongated spicules weakly arcuate with central strip and cephalate proximal end; gubernaculum conical without apophysis; and a tubular precloacal supplement with a long seta at its anterior end. Oxystomina longiseta sp. nov. can be distinguished from other known species by the relatively long outer labial setae and cephalic setae; arcuate spicules expanded proximally with a median rib; gubernaculum small and oblong; and two unequal precloacal supplementary setae, anterior one short, posterior one very long. Updated keys to eighteen species of Belbolla and keys to four species of Ironella are given. |
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