Pelonaia corrugata (Goodsir & Forbes, 1841)
Solitary. Body elongated and bottle-shaped. Test wrinkled, coated with sand and mud, bearing fibrils towards the base.
Up to 140 mm.
Unattached and partly imbedded in sand or mud; from shallow water down to depths of 200 meters.
The young ascidian develops directly from attached embryo.