Longicyatholaimus bellulus Vitiello, 1970 accepted as Marilynia bellula (Vitiello, 1970) Hopper, 1972 accepted as Marylynnia bellula (Vitiello, 1970) Hopper, 1977
Longicyatholaimus capsulatus Vitiello, 1970 (uncertain )
Longicyatholaimus cervoides Vitiello, 1970
Longicyatholaimus continus Filipjev, 1946
Longicyatholaimus dubius Filipjev, 1946 accepted as Marilynia dubius (Filipjev, 1946) Hopper, 1972 accepted as Marylynnia dubia (Filipjev, 1946) Hopper, 1977
Longicyatholaimus filicaudatus Schuurmans Stekhoven, 1950 (uncertain > taxon inquirendum )
Marilynia annae (Wieser & Hopper, 1967) Hopper, 1972 accepted as Marylynnia annae (Wieser & Hopper, 1967) Hopper, 1977
Marilynia bellula (Vitiello, 1970) Hopper, 1972 accepted as Marylynnia bellula (Vitiello, 1970) Hopper, 1977
Marilynia dubius (Filipjev, 1946) Hopper, 1972 accepted as Marylynnia dubia (Filipjev, 1946) Hopper, 1977
Marylynnia annae (Wieser & Hopper, 1967) Hopper, 1977
Marylynnia bellula (Vitiello, 1970) Hopper, 1977
Marylynnia dubia (Filipjev, 1946) Hopper, 1977
Metacyatholaimus chabaudi Gourbault, 1980
Metacyatholaimus spatiosus Wieser, 1954