Peranema cuneatum Playfair, 1921. Cells are metabolic, 25-70 microns long and 5-15 microns wide. When free-swimming, it is cuneate, sharp-pointed in front and abruptly truncate behind, one corner is sometimes produced as a pointed tail directed backwards, or a blunt wart-like prominence often bifid and placed to one side. A minute stigma has been reported as occurring occasionally. Cytoplasm homogeneous and transparent. Fig 7 of Plate 9 in Playfair (1921) appears to be Jenningsia fusiforme and Fig 9 of Plate 8 appears to be Peranema trichophorum.
