Description of Hedraiophrys
provided by BioPedia
Gymnosphaerid, cell usually a truncated cone attached to a substrate. With a vesicular 'ectoplasm' and a denser, granular 'endoplasm'. The cell is covered with microfibrillar mucus and numerous tangential siliceous spicules which are as long or longer then the body diameter. There is a large central axoplast, and the nucleus lies near the edge of the cell. May detach and float as spherical cells for a short period. With one marine species: H. hovassei Febvre-Chevalier, 1973 which contains numerous algal and bacterial symbionts.
