World Register of Marine Species (WoRMS)
MolluscaBase eds. (2026). MolluscaBase. Plekocheilus lugubris (Dunker, 1882). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1063245 on 2026-08-01
Dunker, W. (1882). De molluscis nonnullis terrestribus Americae australis. Jahrbücher der deutschen malakozoologischen Gesellschaft. 9: 377-380.