Acanthopharynx merostomacha (Steiner, 1921) Schuurmans Stekhoven, 1943 (original description)
Cyatholaimus caecus ophtalmophorus Steiner, 1921 accepted as Paracanthonchus caecus ophtalmophorus (Steiner, 1921) Allgen, 1942 accepted as Paracanthonchus ophtalmophorus (Steiner, 1921) Vincx et al., 1982 (original description)
Cyatholaimus canariensis Steiner, 1921 (original description)
Enoplus meridionalis Steiner, 1921 (original description)
Hypodontolaimus heymonsi (Steiner, 1921) Filipjev, 1930 (ecology source)
Hypodontolaimus inaequalis (Bastian, 1865) De Man, 1886 (additional source)
Linhomoeus triadenophorus Steiner, 1921 accepted as Synonema triadenophorum (Steiner, 1921) Wieser, 1954 (original description)
Oncholaimus aegypticus Steiner, 1921 (original description)
Spiliphera trichophora Steiner, 1921 accepted as Neochromadora trichophora (Steiner, 1921) Gerlach, 1951 (original description)
Synonema triadenophorum (Steiner, 1921) Wieser, 1954 (ecology source)
Thoracostoma chilense Steiner, 1921 (original description)
Thoracostoma setosum (Linstow, 1896) de Man, 1904 (additional source)

Antarctic Ocean for Thoracostoma chilense Steiner, 1921 
Canary Islands Exclusive Economic Zone for Cyatholaimus canariensis Steiner, 1921 
Canary Islands Exclusive Economic Zone for Linhomoeus triadenophorus Steiner, 1921 
Fuegian Archipelago for Paracanthonchus paralongus Allgén, 1959 
Hawaiian Exclusive Economic Zone for Paracanthonchus pacificus Allgén, 1951 
Red Sea for Cyatholaimus caecus ophtalmophorus Steiner, 1921 
Red Sea for Paracanthonchus ophtalmophorus (Steiner, 1921) Vincx et al., 1982 
South Pacific for Thoracostoma chilense Steiner, 1921