World Register of Marine Species (WoRMS)
MolluscaBase eds. (2026). MolluscaBase. Pygmaepterys oxossi (Petuch, 1979). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1326032 on 2026-08-30
Petuch, E. J. (1979). New gastropods from the Abrolhos Archipelago and reef complex, Brazil. Proceedings of the Biological Society of Washington. 92 (3): 510-526.