Cucullanus elegans is a species of parasitic nematodes. It is an endoparasite of carangid fishes. In 1916, Lane described a new cucullanid species, Bulbodacnitis bulbosa, from the bluefin trevally Caranx melampygus off Sri Lanka and established the new genus Bulbodacnitis to accommodate it, because he considered the presence of a dorsal hemispherical cephalic elevation in this species to be of generic importance. However, Barreto considered Bulbodacnitis Lane, 1916 a junior synonym of Cucullanus O.F. Müller, 1777, to which he transferred Lane’s species.