SEM face view with labial disc lemon-shaped; first labial annulus divided
into six sectors, lateral sectors smaller, submedian sectors somewhat flattened.
Labial region not marked by deep longitudinal indentations. Stylet elongate,
60-100 um long. Cone 60-80% of total stylet length. Labial framework always
weak. Procorpus thickened to accommodate the long stylet, and separated
from the median bulb by a constriction; median bulb with strong valve.
Oesophageal glands overlapping beginning of intestine. Tail sometimes short
for Belonolaimidae (cí = 2 to 3), tail shape varies from cylindroid with
a broadly rounded terminus to almost conoid.