Also known as Green Algae, Green Finger Algae, Green Sea Beads, Dread-locks Algae.
Found in thick clumps in rocky crevices over shallow moderate surge zones of slopes and terraces on coral and rocky reef tops. Looks like a green sponge, but has no pores.
Length - 12cm
Depth - 0-50m
Widespread Indian Ocean
As many as 9000 species of algae are spread across the worlds oceans, some can be as much as 30 metres across while others are just a slippery scum over rocks.
Algae grows wherever there is enough light and life supporting conditions.
They support a huge number of marine life both for food and as a home. Ref: https://www.sealifebase.ca/summary/Tydemania-expeditionis.html