''Mastigamoeba'' is a
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ...
of peolobionts, and treated by some as members of the Archamoebae group of
protists. ''Mastigamoeba ''are characterized as
anaerobic
Anaerobic means "living, active, occurring, or existing in the absence of free oxygen", as opposed to aerobic which means "living, active, or occurring only in the presence of oxygen." Anaerobic may also refer to:
* Anaerobic adhesive, a bonding a ...
, amitochondriate organisms that are polymorphic. Their dominant life cycle stage is as an amoeboid
flagellate. Species are typically free living, though