Rev 08/03/2020
Tylenchida
Tylenchina
Tylenchoidea
Dolichodoridae
Dolichodorinae
Large, slender nematodes with cylindroid bodies.
No secondary sexual dimorphism.
Cuticle distinctly annulated, lateral field with three or four incisures.
Labial region distinctly off-set and annulated (rarely smooth).
Labial sclerotization strong, with very thick basal plate and thick arches.
Amphid apertures small slits laterally or dorso-ventrally directed.
No deirids.
Female tail rounded to hemispherical with spike-like extension, rarely elongate-conoid.
Females with two genital branches, columned uterus with four rows of cells; vagina very heavily sclerotized.
Male caudal alae wing-like and tri-lobed.
Amphimictic reproduction.
Stylet well developed up to 150 µm.; cone markedly longer than shaft.
Esophagus with distinct metacorpus, short isthmus and pyriform glandular region not overlapping the intestine.
Obligate migratory ectoparasites of plant roots.
[Ref: Luc & Fortuner, Rev. Nematol. 10(2):177-181 (1987), Geraert (2011 )and H. Ferris.]
Geraert, E. 2011. The
Dolichodoridae of the World. Academia Press, Gent. 520p.
Luc & Fortuner 1987, Rev. Nematol. 10:177-181