Triparma is a genus of unicellular algae in the family Triparmaceae in the order Parmales.

The motile cells propelled by two flagella of unequal length, typical of heterokonts.

[4] The genus Triparma is actively studied because of their close relationship to the diatoms, and it has been discovered that they have different silica-limitation responses.

While diatoms stop growing and cell division is inhibited under low-silica conditions, Triparma continues to grow and divide normally even under nanomolar concentrations of silica, although the silica plates are no longer produced.

[5] Photosynthetic pigments present in bolydophyte chloroplasts include chlorophylls a, c1, c2, c3, fucoxanthin, diatoxanthin, diadinoxanthin.