Vervoort, W., & Watson, J. E. 2003. The marine fauna of New Zealand: Leptothecata (Cnidaria: Hydrozoa) (thecate hydroids). NIWA Biodiversity Memoir 119: 1-538.[details]
Schuchert, P.; Choong, H.; Galea, H.; Hoeksema, B.; Lindsay, D.; Manko, M.; Pica, D. (2025). World Hydrozoa Database. Symmetroscyphus australis Vervoort & Watson, 2003. Accessed through: Marine Species Traits editorial board (2025) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=291155 on 2026-07-11
Marine Species Traits editorial board (2026). Marine Species Traits. Symmetroscyphus australis Vervoort & Watson, 2003. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=291155 on 2026-07-11
original descriptionVervoort, W., & Watson, J. E. 2003. The marine fauna of New Zealand: Leptothecata (Cnidaria: Hydrozoa) (thecate hydroids). NIWA Biodiversity Memoir 119: 1-538.[details]
basis of recordVervoort, W.; Schuchert, P. & van der Land, J. (2000-2007). as a contribution to UNESCO-IOC Register of Marine Organisms. (look up in IMIS) [details]
Present Inaccurate Introduced: alien Containing type locality