Dodatak:Popis oblića, M
Ma uredi
- Macramphis
- Macrolaimus
- Macronchus
- Macroposthonia
- Macrotrophurus
- Makatinus
- Maldivea
- Margonema
- Marilynia
Marylynnia (Hopper, 1972) Hopper, 1977 uredi
- Marylynnia annae (Wieser & Hopper, 1967) Hopper, 1977 tipična[1]
- Marylynnia bellula (Vitiello, 1970) Hopper, 1977
- Marylynnia choanolaimoides (Schuurmans Stekhoven, 1942) Hopper, 1977
- Marylynnia complexa (Warwick, 1971) Hopper, 1977
- Marylynnia dayi (Inglis, 1963) Hopper, 1977
- Marylynnia denticulata Kim, Tchesunov & Lee, 2015
- Marylynnia dubia (Filipjev, 1946) Hopper, 1977
- Marylynnia effilata (Schuurmans Stekhoven, 1946) Hopper, 1977
- Marylynnia eratos (Hopper, 1972) Hopper, 1977
- Marylynnia gerlachi (Hopper, 1972) Hopper, 1977
- Marylynnia gracila Huang & Xu, 2013
- Marylynnia hopperi Sharma & Vincx, 1982
- Marylynnia johanseni Jensen, 1985
- Marylynnia macrodentata (Wieser, 1959) Hopper, 1977
- Marylynnia mulsa (Hopper, 1972) Hopper, 1977
- Marylynnia musharafii Nasira, Kamran & Shahina, 2007
- Marylynnia oculissoma (Hopper, 1972) Hopper, 1977
- Marylynnia preclara (Hopper, 1972) Hopper, 1977
- Marylynnia punctata Jensen, 1985
- Marylynnia puncticaudata Boufahja & Beyrem, 2014
- Marylynnia stekhoveni (Wieser, 1954) Hopper, 1977
- Marylynnia wieseri (Inglis, 1963) Hopper, 1977
Nematoda → Chromadorea → Chromadorida → Cyatholaimidae → Cyatholaiminae
- Mastophorus
- Maupasina
- Maupasinidae
Me uredi
- Megadorus
- Megalamphis
- Megodontolaimus
- Meloidodera
- Meloidogyne
- Mermis
- Mermithida
- Mermithidae
- Meroviscosia
- Mesacanthion
- Mesacanthoides
- Mesocriconema
- Mesodiplogaster
- Mesodorylaimus
- Mesonchium
- Mesorhabditis
- Mesotheristus
- Metachromadora
- Metacomesoma
- Metactinolaimus
- Metacyatholaimus
- Metacylicolaimus
- Metadasynemella
- Metadesmodora
- Metadesmolaimus
- Metadiplogaster
- Metalaimus
- Metalinhomoeus
- Metaparoncholaimus
- Metaphelenchus
- Metaraeolaimoides
- Metasabatiera
- Metastrongylidae
- Metastrongylus
- Metenoploides
- Metepsilonema
- Metoncholaimoides
- Metoncholaimus
- Meyersia
- Meylis
- Meylonema
Mi uredi
- Micoletzkya
- Micoletzkyia
- Miconchus
- Micracanthonchus
- Microlaimidae
- Microlaimus
- Micronema
- Microtetrameres
- Minolaimus
- Miranema
Mo uredi
- Molgolaimus
- Molineidae
- Monhystera
- Monhysterida
- Monhysteridae
- Monhysteroides
- Monhystrella
- Monhystrium
- Monochromadora
- Mononchida
- Mononchidae
- Mononchoides
- Mononcholaimus
- Mononchulidae
- Mononchulus
- Mononchus
- Monoposthia
- Monoposthiidae
- Monoposthioides
- Morulaimus
Mu uredi
- Muellerius
My uredi
- Myctolaimus
- Mylodiscus
- Mylonchulus
- Mylonchus