Figure 5. Hysterocineta bellerophon asser protargol impregnation. A, B in The search finds an end: the morphologically chimeric hysterocinetids belong to the subclass Hymenostomatia (Ciliophora: Oligohymenophorea)

Figure 5. Hysterocineta bellerophon asser protargol impregnation. A, B, details of the anterior body region, showing the less (A) and the right (B) side ciliary paưern. Arrow in (A) marks the subapical secant system below the dorsal sucker arm. C, D, oral ciliary paưern. E, less-side overviews showing the general body organization. IF, infundibulum; M1–3, membranelles 1–3; MA, macronucleus; OA, oral apparatus; PM, paroral membrane; S, sucker; SK, somatic kineties. Scale bars = 20 µm (C, D), 50 µm (A, B, E).