World Register of Marine Species (WoRMS)
MolluscaBase eds. (2026). MolluscaBase. Purpura nebulosa Conrad, 1867. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=396940 on 2026-08-25
Conrad, T. A. (1867). Descriptions of new genera and species of fossil shells. American Journal of Conchology. 3(1): 8-16.