Description

Also known as Elephants Ear, Elephants Ear Seaweed, Green Fan, Solitary Fan, Solitary Fan Seaweed.

Found singly, embedded by a stalk, in mud and sandy substrate, over intertidal, protected beachside channels, and reef flats, of lagoons rich in vegetation.
Length - 20cm
Depth - 0-28m
Widespread Indo-Pacific

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://en.wikipedia.org/wiki/Avrainvillea