Panagrolaimidae Thorne, 1937
Macrolaimus aculeatus
Macrolaimus canadensis Sanwal, 1960
Macrolaimus crucis Maupas, 1900
Macrolaimus hamatus Thorne, 1937
Macrolaimus natator Timm, 1960
Macrolaimus ruehmi Andrassy, 1966
Macrolaimus somniorum Andrassy, 1984
Macrolaimus taurus Thorne, 1937
