Acotylea

Acotylea is a suborder of free-living marine turbellarian flatworms in the order Polycladida.

Taxonomy

 * Superfamily Cryptoceloidea Faubel, 1984
 * Family Cryptocelidae Laidlaw, 1903
 * Family Discocelididae Laidlaw, 1903
 * Family Ilyplanidae Faubel, 1983
 * Family Plehniidae Bock, 1913
 * Family Polyposthiidae Bergendal, 1893
 * Superfamily Leptoplanoidea Faubel, 1984
 * Family Candimboididae Faubel, 1983
 * Family Faubelidae Ozdikmen, 2010
 * Family Gnesiocerotidae Marcus and Marcus, 1966
 * Family Leptoplanidae Stimpson, 1857
 * Family Mucroplanidae Faubel, 1983
 * Family Notocomplanidae Litvaitis, Bolaños & Quiroga, 2019
 * Family Notoplanidae Marcus and Marcus, 1966
 * Family Palauidae Faubel, 1983
 * Family Pleioplanidae Faubel, 1983
 * Family Stylochoplanidae Meixner, 1907
 * Superfamily Stylochoidea Stimpson, 1857
 * Family Callioplanidae Hyman, 1953
 * Family Discoprosthididae Faubel, 1983
 * Family Hoploplanidae Stummer-Traunfels, 1933
 * Family Idioplanidae Dittmann, Cuadrado, Aguado, Noreña & Egger, 2019
 * Family Latocestidae Laidlaw, 1903
 * Family Planoceridae Lang, 1884
 * Family Pseudostylochidae Faubel, 1983
 * Family Stylochidae Stimpson, 1857
 * Not placed in any Superfamily
 * Family Anocellidae Quiroga, Bolanos & Litvaitis, 2006
 * Family Apidioplanidae Bock, 1926
 * Family Didangiidae Faubel, 1983
 * Family Enantiidae Graff, 1889
 * Family Euplanidae Marcus & Marcus, 1966
 * Family Limnostylochidae Faubel, 1983
 * Family Stylochocestidae Bock, 1913