Polaribacter 10 Argentina 6 Taxonomy 6 morphology 6 taxonomy 6 Labyrinthulida 4 Radiata 4 South America 4 Thraustochytriales 4 Thraustochytriidae 4 Thraustochytrium 4 Ulkenia 4 ecological approach 4 estuarine environment 4 eukaryote 4 identification key 4 isolated population 4 Alopias 2 Animals 2 Antarctic Peninsula 2 Antarctica 2 Arctic and Antarctic 2 Bathyraja 2 Biogeography 2 Campanian 2 Cestoda 2 Cestode Infections 2 Cretaceous 2 Dictyostelids 2 Dictyosteliida 2