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Abstract
A recent survey of the non-marine diatoms from seepage areas on James Ross Island (Antarctic Peninsula Region) resulted in the discovery of three new diatom species belonging to the genera Diadesmis, Eolimna and Luticola. Based on both light and scanning electron microscopical observations, these species were described as new to science: Diadesmis inconspicua sp. nov., Eolimna jamesrossensis sp. nov. and Luticola truncata sp. nov. The morphology of each species was compared to similar species worldwide with a special focus on those present in the Antarctic Region. Notes on the ecology of the species were added.