World Register of Marine Species (WoRMS)
MolluscaBase eds. (2026). MolluscaBase. Tornatina knockeri E. A. Smith, 1872. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=701732 on 2026-08-28
Smith, E. A. (1872). A list of species of shells from West Africa, with descriptions of those hitherto undescribed. Proceedings of the Zoological Society of London. 1871: 727–739, pl. 75.