Thanks! Indeed, figure have been linked to wrong captions in Figs 17–20. I have prepared a correct .pdf version, not sure if PLoS will upload it. And you guessed it right, this is a chapter of my PhD thesis, which was written before the official publication of the amazing new taxa from Svalbard!
Here is the link to the current .pdf (email me for the corrected version): http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0084709