Dinema, synonym Dinematomonas,[2] is a genus of flagellated algae in the phylum Euglenozoa.

[1] Like other members of the family Anisonemidae, Dinema consists of single-celled organisms with a larger posterior flagellum by means of which they are able to glide.

They are phagotrophic, meaning that they feed by engulfing particles of food, and are non-photosynthetic.

It is an illegitimate name under the International Code of Nomenclature for algae, fungi, and plants.

[2] Dinema is an acceptable name under the International Code of Zoological Nomenclature.