World Register of Marine Species (WoRMS)
Trona (Chelycypraea) F. A. Schilder, 1927
MolluscaBase eds. (2026). MolluscaBase. Trona (Chelycypraea) F. A. Schilder, 1927. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1598843 on 2026-08-30
Schilder, F. A. (1927). Revision der Cypraeacea (Moll. Gastr.). Archiv für Naturgeschichte. 91A(10): 1-171.