Aponema Jensen, 1978 (additional source)
Bathynox (Bussau, 1993) Bussau & Vopel, 1999 (additional source)
Bolbolaimus Cobb, 1920 (taxonomy source)
Caligocanna Bussau, 1993 (additional source)
Calomicrolaimus Lorenzen, 1976 (new combination reference)
Ixonema Lorenzen, 1971 (additional source)
Microlaimidae Micoletzky, 1922 (taxonomy source)
Microlaimus de Man, 1880 (taxonomy source)
Microlaimus clancularius Bussau, 1993 (additional source)
Microlaimus cochleatus Wieser, 1959 (additional source)
Microlaimus copulatus Jensen, 1988 (additional source)
Microlaimus dimorphus Chitwood, 1937 (additional source)
Microlaimus discolensis Bussau & Vopel, 1999 accepted as
Microlaimus discolensis Bussau, 1993 (additional source)
Microlaimus lazonus Vitiello, 1970 accepted as
Molgolaimus lazonus (Vitiello, 1970) Jensen, 1978 (taxonomy source)
Microlaimus minutus Muthumbi & Vincx, 1999 (additional source)
Microlaimus porosus Bussau & Vopel, 1999 accepted as
Microlaimus porus Bussau, 1993 (additional source)
Microlaimus texianus Chitwood, 1951 (additional source)
Molgolaimus Ditlevsen, 1921 (taxonomy source)
Paramicrolaimus Wieser, 1954 (additional source)
Pseudomicrolaimus Sergeeva, 1976 (new combination reference)