On red alga (Callophyllis sp.) in debris left behind by crabbers on Pier 59, Seattle.
A common ascidian taxon on blade of Posidonia sea-grass under jetty.MLSSA dive.
Water temp 24 degC top/bot
DO 5/6 ppm top/bot
Salinity 34/34 ppt top/bot
Secchi 185 cm
Growing in circles and bands on a clump of Codium.
<2m deep.