Acantholaimus Allgén, 1933 (original description)
Acantholaimus longisetosus Allgén, 1933 (original description)
Aegialoalaimus sabulicola Allgén, 1933 (original description)
Bathylaimus tenuicaudatus (Allgén, 1933) Allgen, 1947 (ecology source)
Bathylaimus zostericola (Allgén, 1933) De Coninck & Stekhoven, 1933 (ecology source)
Cyatholaimus minutus Allgén, 1933 (original description)
Cyatholaimus nordgaardi Allgén, 1933 (original description)
Cyatholaimus savaljevi Allgén, 1933 (original description)
Daptonema trichospiculum (Allgén, 1933) Wieser, 1956 (original description)
Desmodora microchaetoides Allgén, 1933 (original description)
Desmolaimus zosterae Allgén, 1933 (original description)
Eleutherolaimus parastenosoma Allgén, 1933 (original description)
Halalaimus longicollis Allgén, 1932 (redescription)
Halichoanolaimus consimilis Allgén, 1933 (original description)
Halinema norwegicum Allgén, 1933 (original description)
Hypodontolaimus abyssalis Allgén, 1933 (original description)
Linhomoeus paralineatus Allgén, 1933 (original description)
Microlaimus tenuispiculum de Man, 1922 (additional source)
Monhystera disjuncta Bastian, 1865 accepted as Halomonhystera disjuncta (Bastian, 1865) Andrássy, 2006 (additional source)
Monhystera paraambigua Allgén, 1933 accepted as Halomonhystera disjuncta (Bastian, 1865) Andrássy, 2006 (original description)
Omicronema nidrosiense Allgén, 1933 (original description)
Oxystomina nidrosiensis Allgén, 1933 (original description)
Parachromagasteriella Allgén, 1933 (original description)
Parachromagasteriella cylindricauda Allgen, 1933 (original description)
Paralinhomoeus ilenensis (Allgén, 1933) Gerlach, 1963 accepted as Linhomoeus ilenensis (Allgén, 1933) Gerlach, 1963 (original description)
Paralinhomoeus trichurus (Allgén, 1933) accepted as Linhomoeus trichurus (Allgén, 1930) (original description)
Prochromadorella paramucrodonta (Allgén, 1929) Wieser, 1951 (ecology source)
Pseudonchus norwegicus Allgén, 1933 (original description)
Rhabditis (Rhabditis) nidrosiensis Allgén, 1933 (original description)
Sabatieria ornata (Ditlevsen, 1918) Filipjev, 1922 (redescription)
Siphonolaimus anticomoides (Allgén, 1933) Wieser, 1956 (original description)
Sphaerolaimus abyssorum Allgén, 1933 (original description)
Terschellingia similis Allgén, 1933 (original description)
Thalassoalaimus filiformis Allgén, 1933 (original description)
Theristus norwegicus (Allgén, 1933) Wieser, 1956 (ecology source)
Trefusia filicauda Allgén, 1933 (original description)
Trefusia zostericola Allgén, 1933 (original description)