Palombiella macquari – synonym of Synsiphonium ernesti
Pentacoelum caspium – synonym of Pentacoelum fucoideum
Planaria (?) macrostoma – synonym of Procerodella macrostoma
Planaria affinis – synonym of Foviella affinis
Planaria amara – synonym of Uteriporus vulgaris
Planaria cornuta? – synonym of Procerodes littoralis
Planaria dioica – synonym of Sabussowia dioica
Planaria frequens? – synonym of Procerodes littoralis
Planaria grisea – synonym of Foviella affinis
Planaria hebes? – synonym of Foviella affinis
Planaria limuli – synonym of Bdelloura candida
Planaria littoralis – synonym of Foviella affinis
Planaria littoralis – synonym of Procerodes littoralis
Planaria ulvae – synonym of Procerodes littoralis
Planaria ulvae – synonym of Procerodes lobatus
Procerodes anatolica – synonym of Procerodes anatolicus
Procerodes asahinai – synonym of Procerodella asahinai
Procerodes gerlachei – synonym of Obrimoposthia aparala
Procerodes gerlachei – synonym of Obrimoposthia wandeli
Procerodes Hallezi – synonym of Obrimoposthia hallezi
Procerodes hallezi – synonym of Obrimoposthia ohlini
Procerodes Harmsi – synonym of Ostenocula harmsi
Procerodes ireneae – synonym of Procerodes plebeius
Procerodes jacqueti – synonym of Procerodes plebeius
Procerodes japonica – synonym of Procerodella japonica
Procerodes kerguelenensis – synonym of Allogenus kerguelenensis
Procerodes lactea – synonym of Procerodes lacteus
Procerodes limuli – synonym of Ectoplana limuli
Procerodes lobata – synonym of Procerodes lobatus
Procerodes macrostoma – synonym of Procerodella macrostoma
Procerodes marginata – synonym of Stummeria marginata
Procerodes ohlini – synonym of Obrimoposthia ohlini
Procerodes pacifica – synonym of Procerodes pacificus
Procerodes plebeia – synonym of Procerodes plebeius
Procerodes sameha – synonym of Procerodes dahli
Procerodes sanderi – synonym of Obrimoposthia wandeli
Procerodes segmentata – synonym of Procerodes lobatus
Procerodes solowetzkiana – synonym of Procerodes solowetzkianus
Procerodes trigonocephala – synonym of Paucumara trigonocephala
Procerodes ulvae – synonym of Procerodes littoralis
Procerodes variabilis var. isabellina – synonym of Procerodes variabilis
Procerodes Wandeli – synonym of Obrimoposthia wandeli
Procerodes warreni – synonym of Uteriporus vulgaris
Procerodes Wheatlandi – synonym of Procerodes littoralis