title: A new species of free-living marine nematode (Nematoda: Chromadoridae) from the East China Sea.
abstract: A new species of free-living marine nematodes, Ptycholaimellus longibulbus sp. nov., is described from the East China Sea. Ptycholaimellus longibulbus sp. nov. is characterized by having body length of about 1100-1400 μm, cephalic seta 9 µm long (half a head diameter), a relatively long double posterior pharyngeal bulb occupying 44-49% of pharyngeal length, a voluminous ventral gland with a large ampulla, cuticle with transverse rows of punctations and lateral differentiation with two longitudinal rows of thick dots, relatively long spicules 45-55 μm long, an arcuate gubernaculum 25 µm long, and a conico-cylindrical tail with a distinct long finger-like spinneret. A key to species of Ptycholaimellus is given.
authors.affiliation: College of Life Sciences, Shandong Normal University, Jinan, 250014, P.R. China.; Email: wangchunming@lcu.edu.cn.
authors.forename: Wang
authors.initials: W
authors.lastname: Chunming
authors.affiliation: College of Life Sciences, Shandong Normal University, Jinan, 250014, P.R. China.; Email: unknown.
authors.forename: An
authors.initials: A
authors.lastname: Liguo
authors.affiliation: College of Life Sciences, Liaocheng University, Liaocheng, 252059, P.R. China; Email: huangy@lcu.edu.cn.
authors.forename: Huang
authors.initials: H
authors.lastname: Yong
mesh_terms: D000818:Animals; D002681:China; D005260:Female; D008297:Male; D009348:Nematoda / Q000033:anatomy & histology / Q000145:classification*; D013045:Species Specificity