Acanthopharynx merostomacha (Steiner, 1921) Schuurmans Stekhoven, 1943 (redescription)
Anticoma aberrans Allgén, 1951 (original description)
Anticomopsis filicauda (Allgen, 1951) Wieser, 1953 (ecology source)
Aponchium conicaudatum Allgén, 1951 (original description)
Araeolaimus hawaiiensis Allgén, 1951 accepted as Onchium hawaiiense (Allgén, 1940) Gerlach, 1962 (original description)
Axonolaimus leptosoma Allgén, 1951 (original description)
Bolbella californica Allgén, 1951 accepted as Belbolla californica (Allgén, 1951) Andrássy, 1973 (original description)
Bolbella tenuicollis Allgen, 1951 accepted as Polygastrophora tenuicollis (Allgen, 1951) Wieser, 1953 (original description)
Desmodora arcospiculum Allgén, 1951 (original description)
Desmodora crassa Allgén, 1951 (original description)
Desmodora propinqua Allgén, 1951 accepted as Zalonema propinqua (Allgén, 1951) Gerlach, 1963 (original description)
Dignathonema mirabile Allgen, 1951 accepted as Demonema rapax Cobb, 1894 (original description)
Diplopeltis longisetosa (Allgén, 1929) Kreis, 1928 accepted as Diplopeltis cirrhatus (Eberth, 1863) Cobb, 1891 (additional source)
Dorylaimopsis hawaiiensis Allgen, 1951 (original description)
Enchelidium microlaimum Allgén, 1951 (original description)
Enchelidium pacificum Allgén, 1951 (original description)
Enoplolaimus disasteri Allgén, 1951 (original description)
Enoplolaimus hawaiiensis Allgen, 1951 accepted as Mesacanthion hawaiiense (Allgen, 1951) Wieser, 1953 (original description)
Enoplolaimus mortenseni Allgén, 1951 accepted as Mesacanthion infantile (Ditlevsen, 1930) De Coninck & Schuurmans Stekhoven, 1933 (original description)
Enoplolaimus philippinensis Allgén, 1951 accepted as Mesacanthion infantile (Ditlevsen, 1930) De Coninck & Schuurmans Stekhoven, 1933 (original description)
Enoplus meridionalis Steiner, 1921 (additional source)
Enoplus micrognathus Allgén, 1947 (additional source)
Leptosomatina Allgén, 1951 (original description)
Leptosomatina longiseta Allgén, 1951 (original description)
Leptosomatum abyssale Allgén, 1951 (original description)
Mononcholaimus gabriolae Allgen, 1951 (original description)
Monoposthia pacifica Allgén, 1951 (original description)
Odontophora diegoensis Allgén, 1951 accepted as Parodontophora diegoensis (Allgén, 1951) Timm, 1963 (original description)
Paracanthonchus brachyuris Allgén, 1951 (original description)
Paracanthonchus hawaiiensis Allgén, 1951 (original description)
Paracanthonchus pacificus Allgén, 1951 (original description)
Paracanthonchus tenuispiculum Allgén, 1951 accepted as Paracyatholaimus tenuispiculum (Allgén, 1951) Wieser, 1954 (original description)
Paranticoma filicauda Allgen, 1951 accepted as Anticomopsis filicauda (Allgen, 1951) Wieser, 1953 (original description)
Parodontophora pacifica (Allgén, 1947) Timm, 1963 (additional source)
Phanoderma hawaiiense Allgén, 1951 (original description)
Phanoderma tenuicaudatum Allgén, 1951 (original description)
Sabatieria filicauda Allgén, 1951 (original description)
Thoracostoma philippinensis Allgén, 1951 accepted as Thoracostoma philippinense Allgen, 1951 (original description)
Viscosia pacifica Allgén, 1951 accepted as Oncholaimus rapax Kreis, 1932 (original description)

Antarctic Ocean for Leptosomatina longiseta Allgén, 1951 
East Pacific for Acanthopharynx merostomacha (Steiner, 1921) Schuurmans Stekhoven, 1943 
Falkland Islands Exclusive Economic Zone for Monoposthia paramediterranea Allgén, 1959 
Honolulu for Monoposthia pacifica Allgén, 1951 
Honolulu for Paracanthonchus tenuispiculum Allgén, 1951 
Philippine Sea for Desmodora arcospiculum Allgén, 1951 
Philippine Sea for Thoracostoma philippinense Allgen, 1951 

Unknown type, geounit San Diego Bay, identified as Bolbella californica Allgén, 1951