World Register of Marine Species (WoRMS)
Pleurotoma (Defrancia) chariessa R. B. Watson, 1881
MolluscaBase eds. (2026). MolluscaBase. Pleurotoma (Defrancia) chariessa R. B. Watson, 1881. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=436716 on 2026-08-24
Watson, R.B. (1881). Mollusca of H.M.S. Challenger Expedition. Parts VIII, IX, X. Journal of the Linnean Society, Zoology. 15: 388-475.