Calomicrolaimus honestus (de Man, 1922) Jensen, 1978 accepted as Microlaimus honestus De Man, 1922
Cinctonema polare (Cobb, 1914) Timm, 1978
Microlaimus falklandiae Allgén, 1959
Microlaimus honestus De Man, 1922
Microlaimus latilaimus Allgén, 1959
Microlaimus longispiculum Timm, 1961
Microlaimus papilliferus Allgén, 1959
Microlaimus problematicus Allgén, 1932 (uncertain > taxon inquirendum )
Microlaimus tenuispiculum de Man, 1922
Monoposthia desmodoroides Allgén, 1959
Monoposthia falklandiae Allgén, 1959
Monoposthia grahami Allgén, 1959
Monoposthia longiseta Allgén, 1935 accepted as Monoposthia mirabilis Schulz, 1932
Monoposthia mirabilis Schulz, 1932