Diuronotus aspetos is a species of large sized meiofaunal chaetonotid gastrotrich[1][2] found in the North Atlantic.

D. aspetos appears to be associated to a rich diversity of Gastrotricha like Chaetonotus atrox, Halichaetonotus sp., Mesodasys sp., Paradasys sp., Tetranchyroderma sp., Thaumastoderma sp.

[5] The range of the species was greatly extend in 2012 through discovery of an adolescent specimen from sandy bottom at a depth of 15.5 meters near Wangerooge in the North Sea.

[1] Apart from the sensory and head cilia mentioned above, the ventral ciliation is continuous and dense, extending from the posterior edge of the mouth to the two-thirds of the pharynx.

However, a systematic relationship have been proposed between Diuronotus and the genus Musellifer,[1] justifying the erection of a new family for this two genera: Muselliferidae.

[6] The characters justifying this relationship are a muzzle like ciliated structure surrounding the mouth and the homogeneous ultrastructure of the scales.