title: Morphology and morphometrics of Heterodorus qinghaiensis n. sp. (Dorylaimida, Nordiidae) from soil samples in China.
abstract: One new species of the family Nordiidae Jairajpuri & Siddiqi, 1964 from the enclosure grassland of Qinghai Province, China, Heterodorus qinghaiensis n. sp., is described and illustrated. The new species is characterized by the slender body, 1.29-1.46 mm in length; the granular lateral chord with numerous large depression plaques throughout its entirety; the lip region offset by a distinct depression; amphid goblet-shaped with aperture about half to two-thirds of corresponding body diameter; odontostyle 11-13 μm long; rod-like odontophore without basal flanges; pharyngeal basal expansion about one-third of the total neck length; didelphic genital system containing sperm; ovaries generally not reaching the sphincter level; vulva transversed and sclerotized; female tail conoid with round terminus; 3-5 spaced ventromedial supplements and spicule 32-41 μm long. It is close to H. liangi (Ahmad, Wu & Shaheen, 2002) Andrássy, 2009, H. brevidentatus (Thorne, 1939) Andrássy, 2009, H. monticola Andrássy, 2011, H. morgensis (Loof, 1988) Andrássy, 2009 and H. meghalayensis (Mushtaq, Baniyamuddin & Ahmad, 2007) Andrássy, 2009 in having inconspicuous or no lateral body pores, smaller odontostyle and ventrally curved tail.
authors.affiliation: Lab of Plant Nematology/Research Center of Nematodes of Plant Quarantine, Department of Plant Pathology,College of Nature Resources and Environment, South China Agricultural University,Guangzhou,Guangdong510642,China.
authors.forename: W J
authors.initials: WJ
authors.lastname: Wu
authors.affiliation: Department of Grassland Sciences,Agriculture and Animal Husbandry College, Qinghai University,Xining,Qinghai810003,China.
authors.forename: L
authors.initials: L
authors.lastname: Yan
authors.affiliation: Lab of Plant Nematology/Research Center of Nematodes of Plant Quarantine, Department of Plant Pathology,College of Nature Resources and Environment, South China Agricultural University,Guangzhou,Guangdong510642,China.
authors.forename: C L
authors.initials: CL
authors.lastname: Xu
authors.affiliation: Lab of Plant Nematology/Research Center of Nematodes of Plant Quarantine, Department of Plant Pathology,College of Nature Resources and Environment, South China Agricultural University,Guangzhou,Guangdong510642,China.
authors.forename: L
authors.initials: L
authors.lastname: Yu
authors.affiliation: Lab of Plant Nematology/Research Center of Nematodes of Plant Quarantine, Department of Plant Pathology,College of Nature Resources and Environment, South China Agricultural University,Guangzhou,Guangdong510642,China.
authors.forename: K
authors.initials: K
authors.lastname: Wang
authors.affiliation: Department of Grassland Sciences,Agriculture and Animal Husbandry College, Qinghai University,Xining,Qinghai810003,China.
authors.forename: S Y
authors.initials: SY
authors.lastname: Jin
authors.affiliation: Lab of Plant Nematology/Research Center of Nematodes of Plant Quarantine, Department of Plant Pathology,College of Nature Resources and Environment, South China Agricultural University,Guangzhou,Guangdong510642,China.
authors.forename: H
authors.initials: H
authors.lastname: Xie
mesh_terms: D000825:Animal Structures / Q000033:anatomy & histology; D000818:Animals; D001699:Biometry; D002681:China; D008853:Microscopy; D009348:Nematoda / Q000033:anatomy & histology / Q000145:classification* / Q000302:isolation & purification*; D012987:Soil / Q000469:parasitology*
chemical_list: D012987:Soil