A lot of different creatures live among and on seaweeds. One abundant and species-rich group are the Bryozoans or Moss animals, which are not the easiest of critters to make sense of (then again, which are!?). Here are three species common on seaweeds, identified with the help of David Fenwicks excellent Aphotomarine site. A Sea chervil Alcyonidium diaphanum, Flustrellidra hispida and a close-up of Tubulipora plumosa: