World Register of Marine Species (WoRMS)
Schuchert, P.; Choong, H.; Galea, H.; Hoeksema, B.; Lindsay, D.; Manko, M.; Pica, D. (2026). World Hydrozoa Database. Phialidium mccradyi (Brooks, 1888). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=117397 on 2026-08-25
Brooks, W. K. 1888. The life history of Epenthesis McCradyi (n. sp.). Studies from the Biological laboratory : Johns Hopkins University 4: 147-162, pls 13-15.