Two new free-living nematode species of the family Xyalidae from the Laizhou Bay of the Bohai Sea, China
- 10 June 2019
- journal article
- research article
- Published by Magnolia Press in Zootaxa
- Vol. 4614 (2), 383-394
- https://doi.org/10.11646/zootaxa.4614.2.7
Abstract
Two new species of the family Xyalidae from the Laizhou Bay of the Bohai Sea, China are described and illustrated herein. Daptonema papillifera sp. nov. is characterized by relatively small body size, L-shaped spicules with a large cephalate proximal end, triangular gubernaculum with a dorsal apophysis, 5–6 conjoint precloacal cuticularized spines and two ventral papillae located at the middle of the tail. Daptonema papillifera sp. nov. is easily distinguished from the other species in this genus by having 5–6 conjoint precloacal cuticularized spines and two ventral caudal papillae. Pseudosteineria anteramphida sp. nov. is characterized by eight groups of long subcephalic setae located posterior to amphideal fovea, curved slender spicules with cephalate proximal end and tapered distal end, tubular gubernaculum without apophysis, precloacal supplements absent, and a short precloacal seta present. In comparison with its most similar congeneric species, P. ventropapillata Tchesunov, 2000 the new species differs in having smaller body, not jointed cephalic setae, absence of precloacal supplements and absence of gubernacular apophysis.Keywords
This publication has 12 references indexed in Scilit:
- Two new species of Xyalidae (Monhysterida, Nematoda) from the East China SeaZootaxa, 2018
- Two new species of the genus Daptonema Cobb, 1920 (Nematoda: Xyalidae) found in an intertidal seagrass bed on the coast of the Andaman Sea, Thailand, with reference to the taxonomic status of the genus Trichotheristus Wieser, 1956Zootaxa, 2018
- One new species and one new combination of the family Xyalidae (Nematoda: Monhysterida) from the East China SeaZootaxa, 2017
- Two new nematodes,Pseudelzalia longisetagen. nov., sp. nov. andParamonohystera sinicasp. nov. (Monhysterida: Xyalidae), from sediment in the East China SeaJournal of Natural History, 2014
- The state of the art of Xyalidae (Nematoda, Monhysterida) with reference to the Brazilian recordsMarine Biodiversity, 2014
- Two new nematode species of the genus Daptonema Cobb, 1920 (Nematoda, Xyalidae) from mangrove forest estuary of the Red River (Vietnam)Inland Water Biology, 2014
- Two new free-living marine nematode species of the genus Pseudosteineria (Monohysterida: Xyalidae) from the Yellow Sea, ChinaJournal of Natural History, 2010
- Two new species of Xyalidae (Nematoda) from the Yellow Sea, ChinaJournal of the Marine Biological Association of the United Kingdom, 2010
- Guitartia tridentata n. gen., n. sp. (Monhysterida: Xyalidae) and Macrodontium gaspari n. gen., n. sp. (Chromadorida: Microlaimidae), free-living marine nematodes from the Caribbean SeaNematology, 2010
- Three new species of free‐living marine nematodes from the Bohai Sea and Yellow Sea, ChinaJournal of Natural History, 2005