Pyataeva, S. V., Hopcroft, R. R., Lindsay, D. J. and Collins, A. G. (2016) “DNA barcodes unite two problematic taxa: the meiobenthic Boreohydra simplex is a life-cycle stage of Plotocnide borealis (Hydrozoa: Aplanulata)”, Zootaxa. Auckland, New Zealand, 4150(1), pp. 85–92. doi: 10.11646/zootaxa.4150.1.5.