See text The apusomonads (family Apusomonadidae) are a group of protozoan zooflagellates that glide on surfaces, and mostly consume prokaryotes.

[3][4][5] Apusomonads are small gliding heterotrophic biflagellates (i.e. with two flagella) that possess a proboscis, formed partly or entirely by the anterior flagellum surrounded by a membranous sleeve.

[9] Amoebozoa Breviatea Apusomonadida Ichthyosporea Pluriformea Tunicaraptor Filasterea Choanoflagellata Metazoa Fungi Nucleariae Apusomonads are a poorly and narrowly studied group.

[6] Currently, the diversity of described apusomonads consists of the round Apusomonas and a wide array of "Amastigomonas-type" organisms that have been reclassified into the genera Thecamonas, Manchomonas, Podomonas, Multimonas, Chelonemonas and, most recently, Catacumbia, Cavaliersmithia, Karpovia, Mylnikovia and Singekia.

[1] Later, British protozoologist Thomas Cavalier-Smith classified them within the monotypic class Thecomonadea as part of the paraphyletic phylum Apusozoa.