Sarcomonadea

The sarcomonads (from Ancient Greek σαρκώδης (sarkṓdēs) 'fleshy, i.e. amoeboid', and μονάς (monás) 'unit') or class Sarcomonadea are a group of amoeboid biciliate protists in the phylum Cercozoa. They are characterized by a propensity to move through gliding on their posterior cilium or through filopodia, a lack of scales or external theca, a soft cell surface without obvious cortical filamentous or membranous skeleton, two cilia without scales or hairs, tubular mitochondrial cristae, near-spherical extrusomes, and a microbody (probably a peroxisome) attached to the nucleus.