This alga is dark brown to light brownish-orange in colour with flat bladed branches that are mostly spirally twisted at least in their upper parts with faint concentric growth or hair zones and often with darker central cells.
What habitats does Zonaria spiralis live in?
Can be found on subtidal rocky reefs out to a depth of around 38 m
What is the distribution of Zonaria spiralis?
Southern Australia including around Tasmania
How big does Zonaria spiralis grow?
Can grow to around 22cm long
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