World Register of Marine Species (WoRMS)
Halammovortex nigrifrons (Karling, 1935) Karling, 1943
Tyler, S., Artois, T.; Schilling, S.; Hooge, M.; Bush, L.F. (eds) (2006-2026). World List of turbellarian worms: Acoelomorpha, Catenulida, Rhabditophora. Halammovortex nigrifrons (Karling, 1935) Karling, 1943. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=142957 on 2026-08-28
Karling, T. G. (1935). Mittelungen über Turbellarien aus dem Finnischen Meerbusen. 2. Promesostoma cochlearis n. sp. Memoranda Societatis pro Fauna et Flora Fennica. 10: 391-395.