Two new species of Lauratonema (Nematoda: Lauratonematidae) from the intertidal zone of the East China Sea
In: Journal of Natural History. Taylor & Francis: London. ISSN 0022-2933; e-ISSN 1464-5262, more
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| Keywords |
Lauratonema dongshanense Chen & Guo, 2015 [WoRMS]; Lauratonema macrostoma Chen & Guo, 2015 [WoRMS]; Nematoda [WoRMS]
Marine/Coastal |
| Author keywords |
free-living marine nematode, Lauratonema macrostoma sp. nov., Lauratonema dongshanense sp. nov., East China Sea, dichotomous key |
| Abstract |
Two new species of free-living marine nematodes of the genus Lauratonema Gerlach, 1953 from an intertidal sandy beach of the East China Sea are described and illustrated. Lauratonema macrostoma sp. nov. is characterized by a spacious buccal cavity, depth 2.1–2.3 times width; cup-shaped amphids; small blade-like spicules (14–16 µm long, 0.55–0.65 anal or cloacal body diameter [a.b.d.]) and unequal length of outer labial setae and cephalic setae (13–17 µm and 9–12 µm respectively). Lauratonema dongshanense sp. nov. can be distinguished by the small buccal cavity with a strong cuticularized transverse strip structure; cup-shaped amphids; small blade-like spicules (14–15 µm long, 0.58–0.67 a.b.d.), unequal length of outer labial setae and cephalic setae (8–10 µm and 5–7 µm respectively); the presence of a small precloacal papilla. A dichotomous key for the genus Lauratonema is given. |
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