[Cilia and "epithelial loops" in Ephydatia fluviatilis].
D000818:Animals; D002923:Cilia; D004848:Epithelium / Q000033:anatomy & histology*; D008854:Microscopy, Electron; D011161:Porifera / Q000033:anatomy & histology*
Cilien und "Epithelringe" bei Ephydatia fluviatilis.