Pratylenchidae (Thorne, 1949)
Nacobbidae (Chitwood, 1950)
Radopholidae (Allen & Sher, 1967)
Morphology and Anatomy:
- Body slender, vermiform to greatly swollen.
- Lip region low, less than 0.5 the diameter of basal lip
annule; generally with fewer than five
- Cephalic framework well developed, especially the basal plate.
Deirids rare (Pratylenchoides).
- Phasmids located on tail region.
- Tails generally more than two anal body diameters long.
- Stylet strong, but short, less than 2.5 times longer than the diameter of basal lip region annulus.
- Esophageal glands overlap the intestine,
generally ventrally (exception: some Pratylenchoides).
- Male caudal alae
- Females with one or two genital branches (when one the posterior branch is a postuterine sac).
- Columned uterus composed of three rows of cells.
- Sexual dimorphism may occur, either male feeding apparatus atrophied or females may be saccate.
- Obligate endoparasites of higher plant roots, either migratory or sedentary parasites.
Ref: Maggenti, et al. (1987), H. Ferris
- Maggenti, Luc, Raski, Fortuner & Geraert, 1987. Rev. Nematol. 10:135-142.
- H. Ferris
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