Zonaria spiralis

Zonaria spiralis

Size: Thallus to 15 cm

Distribution: All SA coastal and gulf waters

Habitat: Rocky reef

Depth: Subtidal to 10+ metres

Zonaria spiralis

This small and compact brown algae attaches to rocky reef with a matted rhizoidal holdfast. It is a golden to greenish colour, with twisted fronds, which distinguish it from the similar species Zonaria angustata and Z. turneriana.