Mastigamoebidae

Mastigamoebidae is a family of amoeboid zooflagellates. These organisms possess both pseudopods, which are temporary extensions of the cell used for movement and feeding, and flagella, which are whip-like appendages used for locomotion. Some members of this family have multiple pseudopodia and a single anterior flagellum, though some life stages may lack flagella entirely. While some Mastigamoebidae are multinucleate, they lack mitochondria. The genus Mastigamoeba is the type genus for this family. Many members of this order are free-living in aquatic environments or soil, but some, like Histomonas meleagridis, are parasitic and cause diseases in poultry.1234