Dasmosiphon Fisher, 1950 accepted as Siphonosoma Spengel, 1912 (original description)
Fractipes Bechyně, 1950 (original description)
Mitosiphon Fisher, 1950 accepted as Apionsoma Sluiter, 1902 (original description)
Neocoenonica Cameron, 1950 (original description)
Phalacromacrurus Maul & Koefoed, 1950 accepted as Odontomacrurus Norman, 1939 (original description)
Phascoloides Fisher, 1950 accepted as Nephasoma Pergament, 1946 (original description)
Phascolopsis Fisher, 1950 (original description)