FAMILY Monoposthiidae Filipjev, 1934 GENUS Monoposthia de Man, 1889 [=Monoposthelia Linstow, 1893:74] [misspelling] SPECIES Monoposthia arctica Allgén, 1954 SPECIES Monoposthia baxteri Keppner, 1994:30 TYPE SPECIES Monoposthia costata (Bastian, 1865) [ de Man 1889] [=Spiliphera costata Bastian, 1865] [=Monoposthia apiculata Cobb, 1930] [=Monoposthia chinensis Steiner, 1921] [=Monoposthia constricta Ditlevsen, 1918] [=Monoposthia loricata Kreis, 1929] [=Monoposthia mediterranea Schulz, 1935] [as subspecies of costata] [=Monoposthia mediterranea Stekhoven, 1950] [=Monoposthia metamediterranea] [=Monoposthia minor Schulz, 1932] [=Monoposthia similis Schulz, 1932] SPECIES Monoposthia desmodoroides Allgén, 1959 SPECIES Monoposthia duodecimalata Chitwood, 1936 SPECIES Monoposthia falklandiae Allgén, 1959 SPECIES Monoposthia grahami Allgén, 1959 SPECIES Monoposthia hexalata Chitwood, 1936 [Redescription; Keppner 1994 p.31] SPECIES Monoposthia latiannulata Platnova, 1971 SPECIES Monoposthia mielcki Steiner, 1916 SPECIES Monoposthia mirabilis Schulz, 1932 [Redescription; Vanreusel & Vincx 1989 p.73] [=Monoposthia longiseta Allgén, 1935] SPECIES Monoposthia ornata Timm, 1952 SPECIES Monoposthia pacifica Allgén, 1951 SPECIES Monoposthia paramediterranea Allgén, 1959 GENUS Monoposthioides Hopper, 1963 TYPE SPECIES Monoposthioides anonoposthia Hopper, 1963 [ Gerlach & Riemann 1973] SPECIES Monoposthioides mayri Wieser & Hopper, 1967 [Redescription; Keppner 1994 p.29] GENUS Nudora Cobb, 1920 SPECIES Nudora armillata Wieser, 1959 SPECIES Nudora besnardi (Gerlach, 1956) [=Monoposthia besnardi Gerlach, 1956] SPECIES Nudora bipapillata Platt, 1973 SPECIES Nudora campbelli (Schulz, 1935) [1934?; Diagnostic; Chesunov 1979 p.1460] [=Monoposthia campbelli Schulz, 1935] SPECIES Nudora crepidata Wieser, 1954 SPECIES Nudora gerlachi Andrássy, 1973 [date?] SPECIES Nudora gourbaultae Vanreusel & Vincx, 1989:78 SPECIES Nudora inhabelae (Gerlach, 1957) [=Monoposthia inhabelae Gerlach, 1957] SPECIES Nudora lineata Cobb, 1920 [Diagnostic; Vanreusel & Vincx 1989 p.82] SPECIES Nudora nuda Inglis, 1968 SPECIES Nudora omercooperi Inglis, 1965 SPECIES Nudora sarmatica Chesunov, 1979:1462 SPECIES Nudora septentrionalis Chesunov, 1979:1461 SPECIES Nudora steineri (Filipjev in Steiner, 1921) [=Monoposthia steineri Filipjev in Steiner, 1921] SPECIES Nudora thorakista (Schulz, 1935) [Diagnostic; Chesunov 1979 p.1462] [=Monoposthia thorakista Schulz, 1935] GENUS Rhinema Cobb, 1920 SPECIES Rhinema exquisitum Timm, 1961 [Gerlach & Riemann 1973] TYPE SPECIES Rhinema retrorsum Cobb, 1920 [ Gerlach & Riemann 1973]