Project 4108: Z. Gu, B. Ruthensteiner, C. J. Moura, L. Liu, R. Zhang, X. Song. 2022. Systematic affinities of Zygophylacidae (Cnidaria: Hydrozoa: Macrocolonia) with descriptions of 15 deep-sea species. Zoological Journal of the Linnean Society. epub ahead of print:none yet.