The nematode Aulolaimus oxycephalus belongs to the order Araeolaimida. It was described by Dr. J.G de Man from the coastal dunes of the Netherlands in 1880. The anterior narrowing body has a cuticle without annulation, but with longitudinal striae. The lip region is very narrow and not set off from the body. The stoma is an elongated narrow tube and relatively long, while the pharynx is cylindrical and muscular. Females have two gonads and a sclerotized vagina with lateral flanges. The tail is elongate-conoid with a pointed tip. This soil inhabiting nematode has been recorded from Europe, Asia, South America and Africa.