Two new species of Enoplida (Nematoda) from the Yellow Sea, China

Abstract

Two new species of free‐living marine nematodes Adoncholaimus chinensis sp. nov. and Bathylaimus huanghaiensis sp. nov. from the Yellow Sea, China are described and illustrated. Adoncholaimus chinensis sp. nov. is characterized by the gubernaculum with a slender apophysis; two files of seven to eight circumcloacal setae on each subventral side of body. Bathylaimus huanghaiensis sp. nov. is characterized by a cylindrical body and smooth cutical. The buccal cavity is relatively smaller than in other species of the genus Bathylaimus. The anterior buccal cavity has only one obvious dorsal tooth. The amphids are subspiral with 1.2 turns, posterior to the base of posterior buccal cavity. They also have a long three‐jointed cephalic seta.

Keywords:

• China
• free‐living marine nematodes
• new species
• Yellow Sea

Acknowledgements

This work was supported by National Science Foundation of China (No: 30770250). The authors are greatly thankful to both anonymous reviewers for their valuable revision and comments. We are very grateful to teachers Guilan Qi and Xiuqin Wu for their kind help in samples collection and slide making.