Criconematidae (Taylor, 1936)
Macroposthoniidae (Skarbilovich, 1959)
Madinematidae (Khan, Chawla & Saha, 1975)
Criconematoidea (Siddiqi, 1980)
Caloosiidae (Siddiqi, 1980)
Hemicycliophoridae (Skarbilovich, 1959)
Morphology and Amatomy:
- Body sausage-shaped to cylindrical.
- Cuticle thick, lacking a typical
lateral field (sometimes marked by irregularities in body annuli and/or superficial longitudinal lines extremely variable within the same species).
- Body annuli either retrorse, provided or not with lobation, crenation, scales or spines, or rounded and covered or not with an extra-cuticular layer.
- Labial area variously shaped; submedian lobes absent or variously developed. Labial sclerotization strong.
- Stylet massive; cone much longer than base plus knobs; stylet knobs anchor-shaped or sloping backwards.
- Isthmus very short; esophageal glandular bulb markedly reduced.
- Cuticle showing same range of variations as in female, but in some groups, juvenile and female may have different ornamentation; cuticular spines or scales, if present, arranged in longitudinal rows, stylet non-reduced, functional (lacking in some male J4 of
- From the Greek: krikos = ring, nema = thread
Raski & Luc, Rev. Nematol. 10(4):409-433 (1987).