World Register of Marine Species (WoRMS)
Macroposthonia sphaerocephaloides (De Grisse, 1967) Orton Williams, 1981
Nemys eds. (2026). Nemys: World Database of Nematodes. Macroposthonia sphaerocephaloides (De Grisse, 1967) Orton Williams, 1981. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1429374 on 2026-08-30