World Register of Marine Species (WoRMS)
MolluscaBase eds. (2026). MolluscaBase. Helicina sinuosa L. Pfeiffer, 1851. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1064697 on 2026-08-26
Pfeiffer, L. (1851 ["1850"]). Fünf neue Helicinaceen. Zeitschrift für Malakozoologie. 7(12): 191-192.