Genus Morulaimus

Belonolaiminae.
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.