World Register of Marine Species (WoRMS)
Shenkar, N.; Gittenberger, A.; Lambert, G.; Rius, M.; Moreira da Rocha, R.; Swalla, B.J.; Turon, X. (2026). Ascidiacea World Database. Chelyosoma columbianum Huntsman, 1912. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=250009 on 2026-08-01
Huntsman, A. G. (1912). Ascidians from the coasts of Canada. Trans. Canadian Inst., ann.1911. 111-148.