Anal spikes and long antenna clearly visible, I am confident in my ID. The only Hypogastruridae I have seen on the snow here so far. Another Hypogastruridae family member resided on a wet rotting log, cool to see but unidentifiable from my photos. I am on a lone mission to identify as many springtail species here as possible,, it may just help the efforts of the wonderful people that made the preserve some day. If not, im having fun! ;)