World Register of Marine Species (WoRMS)
MolluscaBase eds. (2026). MolluscaBase. Cyrillia aequalis (Jeffreys, 1867). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1389219 on 2026-08-30
Smith, E. H. (1967). Two new species of British turrids. The Veliger. 10 (1): 1-4.