World Register of Marine Species (WoRMS)
Laganum depressum var. alienum Mortensen, 1948
Kroh, A.; Mooi, R. (2026). World Echinoidea Database. Laganum depressum var. alienum Mortensen, 1948. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=757853 on 2026-08-30
Mortensen, T. (1948). A Monograph of the Echinoidea. IV, 2. Clypeasteroida. Clypeasteridæ, Arachnoidæ, Fibulariidæ, Laganidæ and Scutellidæ. 471 pp., C. A. Reitzel, Copenhagen.