Family: Apex somewhat to much fan-shaped; oral region along apex, may extend ventrally
(Illustrated Guide, 1985). Cytostome slit-like, situated apically on non-ciliated ridge of the body
(Carey, 1992).
Genus: Body long to ovoid; apex fan-shaped; txicysts evenly distributed along edge of apex (Illustrated Guide, 1985).
Body elongate, circular in cross section; antrerior obliquely truncated, surmounted by an unciliated apical ridge,
which is lined with trichocysts; cytostome slit-like (Carey, 1992).
syrtis
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
