title: A redescription of the nematode Oncholaimus vesicarius (Wieser, 1959) and observations on the pigment spots of this species and of Oncholaimus skawensis Ditlevsen, 1921.
mesh_terms: D001699:Biometry; D003116:Color; D009348:Nematoda / Q000033:anatomy & histology / Q000145:classification*; D010858:Pigmentation; D012737:Sex Factors; D013045:Species Specificity