Allgeniella pachydema (G.Schneider, 1926) Allgén, 1947 accepted as Chromadorita pachydema (G. Schneider, 1926) Wieser, 1954 (basis of record)
Catanema exile Cobb, 1920 (basis of record)
Desmodorella hirsuta (Chitwood, 1936) Verschelde et al., 1998 (basis of record)
Desmodorella sanguinea (Southern, 1914) Verschelde et al., 1998 (basis of record)
Desmodorella schulzi (Gerlach, 1950) Verschelde et al., 1998 (basis of record)
Desmoscolex macrophasmatus Decraemer, 1984 (basis of record)
Eumonhystera Andrássy, 1981 (basis of record)
Eumonhystera islandica (De Coninck, 1943) Andrássy, 1981 accepted as Halomonhystera islandica (De Coninck, 1943) Tchesunov, Portnova & van Campenhout, 2015 (basis of record)
Eumonhystera multisetosa (Meyl, 1955) Andrássy, 1981 accepted as Thalassomonhystera multisetosa (Meyl, 1955) Jacobs, 1987 (basis of record)
Eumonhystera parasimplex (De Coninck, 1943) Andrássy, 1981 accepted as Thalassomonhystera parasimplex (De Coninck, 1943) Jacobs, 1987 (basis of record)
Graphonema mediterranea (Allgén, 1942) Warwick & Coles, 1975 (basis of record)
Microlaimus chitwoodi Gerlach, 1950 accepted as Bolbolaimus chitwoodi (Gerlach, 1950) Jensen, 1978 (basis of record)
Paramonhystera albigensis Riemann, 1966 accepted as Promonhystera albigensis Riemann, 1966 (basis of record)
Paramonhystera buetschlii Bresslau & Schuurmans Stekhoven in Schuurmans Stekhoven, 1935 accepted as Paramonohystera buetschlii (Bresslau & Schuurmans Stekhoven in Schuurmans Stekhoven, 1935) (basis of record)
Parapinnanema shirleyae (Coles, 1965) Warwick & Coles, 1975 (basis of record)
Spiliphera minima Vitiello, 1970 accepted as Spiliphera minuta Vitiello, 1972 accepted as Acantholaimus minutus (Vitiello, 1972) Gerlach, Schrage & Riemann, 1979 (basis of record)
Trichenoplus antarcticus Mawson, 1956 accepted as Fenestrolaimus antarcticus (Mawson, 1956) Lorenzen, 1981 (basis of record)
Tricoma bathycola Freudenhammer, 1975 (basis of record)

Belgian Exclusive Economic Zone for Hemimysis anomala G.O. Sars, 1907 
Belgian Exclusive Economic Zone for Sabatieria armata Gerlach, 1952 

 classification

 for Parathalassoalaimus Allgén, 1929

Doubtful genera [details]