Note:  Do not rely on this information. It is very old.

Birdshead Corallines

Bird's-head Corallines, bryozoa of two or three species of the genus Bugula, so named from the prominence of the bird's-head processes found upon them. They are common on the English coast, growing as fan-shaped tufts, or as series of such tufts, rising as a corkscrew spiral to a height of two or three inches.