Nutting, C. C. 1906. Hydroids of the Hawaiian Islands collected by the steamer Albatross in 1902. - Bulletin of the United States Fish Commission for 1903 23: 931-959, pls 1-13., available online athttps://biodiversitylibrary.org/page/51691623 page(s): 944, pl. 3 fig. 6, pl. 9, figs. 4-7 [details]
Schuchert, P.; Choong, H.; Galea, H.; Hoeksema, B.; Lindsay, D.; Manko, M.; Pica, D. (2025). World Hydrozoa Database. Opercularella longicauda Nutting, 1906. Accessed at: https://marinespecies.org/hydrozoa/aphia.php/api-docs/aphia.php?p=taxdetails&id=843033 on 2025-06-04
original descriptionNutting, C. C. 1906. Hydroids of the Hawaiian Islands collected by the steamer Albatross in 1902. - Bulletin of the United States Fish Commission for 1903 23: 931-959, pls 1-13., available online athttps://biodiversitylibrary.org/page/51691623 page(s): 944, pl. 3 fig. 6, pl. 9, figs. 4-7 [details]
Present Inaccurate Introduced: alien Containing type locality