| Colonies
10-20cm, irregular boulders and mounds. Corallites (1cm) long with
a distinctive star-shape pattern at the tips. Polyps with short thin
tentacles often with white tips. Colours blue, green, purple, brown
or reddish. Commonly seen on many of our Southern shores. |
Colonies
20cm or more, boulder-shaped or encrusting. Corallites small (1cm),
usually a blunt conical shape, giving the a pebbled appearance. Colours
blue, green and brown. Sometimes seen on some of our shores. |
Colonies
10-20cm, irregular boulder-shaped. Corallites with thick separate
walls, circular. Corallites are packed close to, but not squashed
against one another. Colours green, yellow, orange, brown, blue and
purple. Commonly seen on many of our shores. |
Colonies
20-40cm. Boulder-shaped with smooth surface. Tiny corallites giving
a texture like sandpaper. The holes of the corallite look like tiny
petals of a flower. With the tentacles extended, the surface has a
furry look. Colours include green and blue. Sometimes seen on some
of our shores. |
Colonies
20cm, boulder-shaped with irregular lumps and hillocks. Monticules
(hard bits sticking out) usually long instead of conical. Colours
brown and dull green. Sometimes seen on our Southern shores.
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