It is normally found burrowed into soft substrates, the only visible part of the animal being the oral disc and tentacles which usually lie flat on the sand.

When extended, the lowest part of the column has a rounded base which is not adhesive to any hard structure.

The oral disc is surrounded by 12 tentacles and there is a 3-lobed conchula, a projection of the lip beside the mouth which is unique to this genus.

[2][3] Peachia cylindrica is found around the Atlantic coasts of Western Europe, including the British Isles, and is sparsely distributed in the Mediterranean Sea.

It occurs typically in the sublittoral zone buried in the sand between low water mark and a depth of 50 m (160 ft).