Two species of the genus Oswaldella Stechow, 1919 new to science (Oswaldella crassa sp. nov. and O. curiosa sp. nov.) were studied. Both species are described and figured; their systematic position amongst the remaining species of the genus is discussed. The material originates from the Bransfield Strait area (Antarctica) and was collected during the United States Antarctic Research Program with R.V. Eltanin. A comparative table listing the main features of the known species of Oswaldella is presented. Finally, a general survey of geographical and bathymetrical distribution of the known species of Oswaldella is given.Descriptors: OSWALDELLA CRASSA, OSWALDELLA CURIOSA