Individual incurrent siphons (black apertures in yellow bodies), communal excurrent siphon (gray opening). On sea squirt growing on pilings at Shellmaker Island, Upper Newport Bay, Newport Beach, Orange County, CA. 11/20/08. © Peter J. Bryant

Colonial Tunicate

Botrylloides diegensis (orange form)

Urochordata: Ascidiacea

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Individual incurrent siphons (black apertures in yellow bodies), communal excurrent siphon (gray opening). On sea squirt growing on pilings at Shellmaker Island, Upper Newport Bay, Newport Beach, Orange County, CA. 11/20/08. © Peter J. Bryant

On dock at Back Bay Science Center, Upper Newport Bay, Newport Beach, Orange County, CA. 5/22/15. © Peter J. Bryant