Plakinidae is a family of marine sponges composed of five genera: \n* Corticium Schmidt, 1862 \n* Corticium acanthastrum Thomas, 1968 \n* Corticium bargibanti Lévi & Lévi, 1983 \n* Corticium candelabrum Schmidt, 1862 \n* Corticium niger Pulitzer-Finali, 1996 \n* Corticium quadripartitum Topsent, 1923 \n* Corticium simplex Lendenfeld, 1907 \n* Placinolopha Topsent, 1897 \n* Placinolopha acantholopha (Thomas, 1970) \n* Placinolopha bedoti Topsent, 1897 \n* Placinolopha europae Vacelet & Vasseur, 1971 \n* Placinolopha moncharmonti (Sarà, 1960) \n* Placinolopha sarai Lévi & Lévi, 1989 \n* Placinolopha spinosa Kirkpatrick, 1900 \n* Plakina Schulze, 1880 \n* Plakina atka Lehnert, Stone & Heimler, 2005 \n* Plakina australis (Gray, 1867) \n* Plakina bioxea Green & Bakus, 1994 \n* Plakina bowerbank