World Register of Marine Species (WoRMS)
MolluscaBase eds. (2026). MolluscaBase. Retigyra granulosa (Sykes, 1925). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=141515 on 2026-08-30
Sykes, E. R. (1925). On the mollusca procured during the "Porcupine" expeditions 1869-70. Supplemental notes, part V. Proceedings of the Malacological Society of London. 16: 181-193.