The tubes, thin and parchment-like, are formed of bits of shell and sand, with plant debris, stuck together with mucus.

The onuphids are all omnivorous scavengers, feeding on animal and vegetable debris.

The mandibles are large and the maxillae have several pairs of plates edged with fine teeth.

The anterior parapodium points forward and has tapered ventral cirri.

[2] The World Register of Marine Species includes these genera in the family:[1]