J. E.  Watson, ?Deep?water hydroids (Hydrozoa: Leptolida) from Macquarie Island?, Memoirs of Museum Victoria, vol. 60, no. 2, p. 151--180, 2003.

J. E.  Watson and Vervoort, W., ?The hydroid fauna of Tasmanian seamounts?, Zoologische Verhandelingen, vol. 334, p. 151--187, 2001.