World Register of Marine Species (WoRMS)
Onyx monstrosum (Gerlach, 1956) Armenteros et al., 2014
Nemys eds. (2026). Nemys: World Database of Nematodes. Onyx monstrosum (Gerlach, 1956) Armenteros et al., 2014. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1320849 on 2026-08-30
Gerlach, S. A. (1956). Neue Nematoden aus dem Küstengrundwasser des Golfes de Gascogne (Biskaya). Vie et milieu. 6: 426-434.