Nygolaimidae is a family of soft-bodied nematodes belonging to the order Dorylaimida. Some members of this family are found in terrestrial soil or fresh water habitats.

Description 
Genera and species of this family are about 1 to 7.3 millimeters in length. Most in this family are characterized by a thin cutical, smooth or fine striations, a spear-like non-protrusible mural tooth located on the left submedian wall of stoma, a basal portion of the esophagus surrounded by a thin sheath, strong spicules with males and short and blundy tails in both sexes.

Genera

Genera:
 Afronygus Heyns, 1968
 Aporcelaimoides Heyns, 1965
 Aquatides Heyns, 1968
 Nygellus

References

Nematodes