Order Pholidoskepia Salvini-Plawen, 1978 Family Meiomeniidae Salvini-Plawen, 1985 Genus Meiomenia Morse, 1979 1 ?Meiomenia arenicola Salvini-Plawen & Sterrer, 1985 - Atlantic psammonworm 2 Meiomenia swedmarki Morse, 1979 - Pacific psammonworm