World Register of Marine Species (WoRMS)
Schuchert, P.; Choong, H.; Galea, H.; Hoeksema, B.; Lindsay, D.; Manko, M.; Pica, D. (2026). World Hydrozoa Database. Obelia bicuspidata Clark, 1875. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=152090 on 2026-08-29
Clark, S. F. (1875). Descriptions of new and rare species of hydroids from the New England coast. Transactions of the Connecticut Academy of Sciences. 3: 58-66, pls 9-10.