World Register of Marine Species (WoRMS)
MolluscaBase eds. (2026). MolluscaBase. Thecacera pennigera (Montagu, 1813). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=140840 on 2026-08-28
Barnard, K. H. (1933). Description of a new species of Thecacera. Journal of Conchology. 19: 294-295.
Montagu, G. (1813). Descriptions of several new or rare animals, principally marine, discovered on the south coast of Devonshire. Transactions of the Linnean Society of London. 11(1): 1–26, pls. 1–5.