Gordon, D. P., and M. Spencer-Jones. “The Amathiiform Ctenostomata (phylum Bryozoa) of New Zealand —including Four New Species, Two of Them of Probable Alien Origin”. Zootaxa, vol. 3647, no. 1, May 2013, pp. 75–95, doi:10.11646/zootaxa.3647.1.4.