Loof & Coomans, 1970
Diagnosis: Medium-sized nematodes. Layering of cuticle inconspicuous.
Cuticle without crisscross lines or punctation, but with fine transverse
striations. Lip region narrow, lips well set off. Oral opening
hexagonal. Odontostyle dorylaimoid, with large aperture. Distance
between nuclei of first ventrolateral pair of esophageal glands much greater
than distance between anterior nucleus of this pair and dorsal nucleus.
Esophago-intestinal disc absent. Female reproductive system amphidelphic.
Vulva a transverse slit. Males with dorylaimoid spicules and non-contiguous
ventromedian supplements. Tail short, conoid; similar in sexes.
Type and only species: Aporcelaimium
labiatum (de Man, 1880) Loof & Coomans, 1970