directions_boatThis is an invasive or introduced species.
Amathia verticillata
Photograph by David Muirhead
SA Distribution
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Size: Colony to over 2 m
Distribution: Scattered sites in SA gulf waters
Habitat: Encrusting artificial structures and rocky reefs
Depth: Subtidal to 10+ metres
A distinctive introduced bryozoan, this species can be found in areas where there is significant shipping traffic. A translucent cream in colour, this species forms a loose tangled mass of long, straight branches, which appear smooth to the naked eye. On closer inspection however, each branch features two opposing rows of zooids which give the colony a slightly fuzzy appearance when the tentacles are extended.