Amphiro simplex Langerhans, 1884 accepted as Marphysa simplex (Langerhans, 1884) (original description)
Archidice glandularis Langerhans, 1884 accepted as Cirratulus glandularis (Langerhans, 1884) (original description)
Autolytus quindecimdentatus Langerhans, 1884 accepted as Myrianida quindecimdentata (Langerhans, 1884) (original description)
Autolytus syllisetosus Langerhans, 1884 (original description)
Ceratonereis brunnea Langerhans, 1884 (original description)
Ceratonereis vittata Langerhans, 1884 represented as Ceratonereis (Composetia) vittata Langerhans, 1884 (original description)
Euchone rosea Langerhans, 1884 (original description)
Filogranula Langerhans, 1884 (original description)
Filogranula gracilis Langerhans, 1884 (original description)
Hyalopomatus marenzelleri Langerhans, 1884 (original description)
Jasmineira oculata Langerhans, 1884 accepted as Claviramus oculatus (Langerhans, 1884) (original description)
Lagisca aequespina Langerhans, 1884 accepted as Harmothoe aequespina (Langerhans, 1884) (original description)
Lysilla nivea Langerhans, 1884 (original description)
Omphalopoma cristata Langerhans, 1884 accepted as Filogranula calyculata (O. G. Costa, 1861) (original description)
Polycirrus haematodes (Claparède, 1864) (new combination reference)
Polycirrus pallidus (Claparède, 1864) (additional source)
Potamilla socialis Langerhans, 1884 (original description)
Procerastea Langerhans, 1884 (original description)
Procerastea nematodes Langerhans, 1884 (original description)
Sabella variabilis Langerhans, 1884 accepted as Sabella discifera Grube, 1874 (original description)
Salmacina setosa Langerhans, 1884 (original description)
Vermilia rugosa Langerhans, 1884 accepted as Semivermilia torulosa (Delle Chiaje, 1822) (original description)
Vermilia serrulata Fleming, 1825 accepted as Placostegus tridentatus (Fabricius, 1779) (source of synonymy)