Description: Cushion, up to 10cm across, "occasionally with fistular proliferations". Pink-pale rose, greyish-rose; becomes creamy in alcohol. Quite firm but compressible. Rather crumbly, especially in alcohol. Oscules scarce, 1-2mm diameter; flush with surface and not very noticeable.

Habitat: From the upper sublittoral to ca. 60m in the sublittoral. "On stones, conglomerates of shells, calcareous algae, sponges etc." In W. Anglesey it is only found growing over massive specimens of Stelletta grubii (q.v.), where it is quite common.

Distribution: "British Isles, Atlantic coasts of France, Mediterranean, ?áSpitzbergen". Known recently from Anglesey, Lough Hyne, N.áCornwall, Padstow.

Distribution Map from NBN: Haliclona fibulata at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Haliclona fibulata at iNaturalist World Species Observations database.