Flustrellidra hispida Fabricius, 1780
soft bryozoan with dark spines and large bluish polypides; on algae, often Fucus serratus
publications
Faasse, M.A. & H. De Blauwe 2004. Faunistisch overzicht van de mosdiertjes van Nederland (Bryozoa: Stenolaemata, Gymnolaemata) - Nederlandse Faunistische Mededelingen 21: 17-54. [colour photos]