viridiraptor viridiraptor viridiraptor is a genus of heterotrophic protists, containing the single species viridiraptor invadens. it belongs to the family viridiraptoridae, in the phylum cercozoa. viridiraptor scientific classification domain: eukaryota clade: diaphoretickes clade: sar phylum: cercozoa class: sarcomonadea order: glissomonadida family: viridiraptoridae genus: viridiraptor species: v. invadens binomial name viridiraptor invadenshess & melkonian, 2013 morphology viridiraptor are unicellular biflagellated organisms that have two blunt-ended, slightly unequal flagella and a peripheral conical nucleus closer to the cell's apical end, closely surrounded by several golgi dictyosomes in its most anterior (anatomy) half. there are cortical extrusomes distributed homogenously across the cell periphery. ecology and behavior starving viridiraptor cells can glide agitatedly while whipping their anterior flagellum, but they also commonly swim across the water column along a helical path. they invade dead or live cells of large-celled freshwater green algae to feed on their protoplast material, and also propagate within the lumen of the devoured cell. they can also extract plastids from small-celled algae. etymology the name viridiraptor (from latin viride 'green', and raptor 'thief'), meaning 'robber of the green', refers to its ability to feed on the chloroplasts of the green algae that it preys. the epithet invadens (from latin invado 'invading') is due to its ability to invade live algal cells.