Acrenhydrosoma Lang, 1944 (original description)
Amonardia Lang, 1944 (original description)
Amonardia arctica (Scott T., 1899) (new combination reference)
Amonardia phyllopus (Sars G.O., 1906) (new combination reference)
Amonardia similis (Claus, 1866) (new combination reference)
Bradya (Bradya) Boeck, 1873 accepted as Bradya Boeck, 1873 (original description)
Bradya (Parabradya) Lang, 1944 accepted as Parabradya Lang, 1944 (original description)
Bulbamphiascus Lang, 1944 (original description)
Canuellidae Lang, 1944 (original description)
Cylindropsyllidae Sars G.O., 1909 (additional source)
Dactylopodamphiascopsis Lang, 1944 (original description)
Dactylopodamphiascopsis latifolius (Sars G.O., 1909) (new combination reference)
Donsiellinae Lang, 1944 (original description)
Ectinosoma Boeck, 1865 (additional source)
Esola Edwards C., 1891 (additional source)
Eurycletodes (Eurycletodes) Lang, 1944 (original description)
Eurycletodes (Oligocletodes) Lang, 1944 (original description)
Eurycletodes (Oligocletodes) major Sars G.O., 1909 (new combination reference)
Eurycletodes irelandica Roe, 1959 represented as Eurycletodes (Oligocletodes) irelandica Roe, 1959 (new combination reference)
Eurycletodes latus (Scott T., 1892) represented as Eurycletodes (Oligocletodes) latus (Scott T., 1892) (new combination reference)
Eurycletodes major Sars G.O., 1909 represented as Eurycletodes (Oligocletodes) major Sars G.O., 1909 (new combination reference)
Halectinosoma Vervoort, 1962 (original description)
Haloschizopera Lang, 1944 (original description)
Heterolaophonte Lang, 1948 (additional source)
Idyellopsis typica Lang, 1948 (additional source)
Laophontodinae Lang, 1944 (original description)
Leptopsyllus (Paraleptopsyllus) Lang, 1944 (original description)
Metamphiascopsis Lang, 1944 (original description)
Metamphiascopsis hirsutus (Thompson I.C. & Scott A., 1903) represented as Metamphiascopsis hirsutus hirsutus (Thompson I.C. & Scott A., 1903) (new combination reference)
Microarthridion Lang, 1944 (original description)
Normanellidae Lang, 1944 (original description)
Onychocamptus Daday, 1903 (additional source)
Parabradya Lang, 1944 (original description)
Paradactylopodia Lang, 1944 (original description)
Paradiosaccus Lang, 1944 accepted as Diosaccus Boeck, 1873 (original description)
Paralaophonte Lang, 1948 (original description)
Paramesochridae Lang, 1944 (original description)
Paramesochrinae Lang, 1944 (original description)
Paramphiascella Lang, 1944 (original description)
Paramphiascopsis Lang, 1944 accepted as Amphiascus Sars G.O., 1905 (original description)
Parargestes Lang, 1944 (original description)
Pararobertsonia Lang, 1944 (original description)
Parastenheliidae Lang, 1944 (original description)
Polyarthra accepted as Canuelloida (original description)
Proameira Lang, 1944 (original description)
Pseudamphiascopsis Lang, 1944 (original description)
Pseudodiosaccopsis Lang, 1944 (original description)
Pseudonychocamptus Lang, 1944 (original description)
Pseudosarsameira Lang, 1944 accepted as Sarsameira Wilson C.B., 1924 (original description)
Rhyncholagena Lang, 1944 (original description)
Tetragonicepsidae Lang, 1944 accepted as Tetragonicipitidae Lang, 1944 (original description)
Tetragonicipitidae Lang, 1944 (original description)
Thompsonulidae Lang, 1944 (original description)
Typhlamphiascus Lang, 1944 (original description)