Song & Wilbert (2002b: 49, figs 10, 41–44)
In vivo c. 200–300 × 60–90 µm. Body elongate-cylindrical to broadly fusiform; apical end slightly head-like; dorsoventrally somewhat flattened. Dark blue pigments between kineties render cells bright blue. Somatic kineties 100–120, forming a suture on ventral side. Adoral membranelles c. 50–70, around apical end in an open “6” shape. Macronucleus ellipsoidal. Movement: slowly gliding.
Atlantic sector of the Southern Ocean (Song & Wilbert, 2002b).