High Abundance of the Epibenthic Trachymedusa Ptychogastria polaris Allman, 1878 (Hydrozoa, Trachylina) in Subpolar Fjords along the West Antarctic Peninsula - Grange, L. J.; Smith, C. R.; Lindsay, D. J.; Bentlage, B.; Youngbluth, M. J. (PLOS ONE, 2017)