List of Nygolaimoides species and key to their identification:

Type species:

N. borborophilus (de Man, 1876) Meyl in Andrássy, 1960 = Dorylaimus borborophilus de Man, 1876

= Nygolaimus borborophilus (de Man, 1876) Thorne & Swanger, 1936 Other species:

N. albus sp. n.

N. andrassyi Ahmad, Okada & Araki, 2003

N. fraternus Andrássy, 1987

N. gubernaculifer (Andrássy, 1957) Andrássy, 1987 = Dorylaimus meyli Paetzold, 1958, syn. by Andrássy (1987) = Thornia dorylaimoides Paetzold, 1959, syn. by Andrássy (1987)

N. pusillus Andrássy, 1987

N. zarrinensis sp. n.