World Register of Marine Species (WoRMS)
MolluscaBase eds. (2026). MolluscaBase. Helix armitageana R. T. Lowe, 1852. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1497088 on 2026-08-29
Lowe, R. T. (1852). Brief diagnostic notices of new Maderan land shells. The Annals and Magazine of Natural History. (2) 9 (50): 112-120; (2) 9 (52): 275-279. London [1 February; 1 April].