FIGURE 5. Actinotricha saltans from life (A–D) and after protargol staining (E–J). (A, B) Ventral view showing general body shapes and the cirral arrangement on the ventral side, the arrows in A and B indicate the right marginal row starting at midbody and cirral-like apical membranelle, respectively. (C) Ventral view of the anterior body showing adoral membranelles. (D) Lateral view showing conspicuous dorsal cilia (arrowheads). (E) Macronuclear nodules. (F) Dorsal view showing dorsal kineties (arrowheads). (G) Ventral view showing ciliature, arrow indicates the micronucleus. (H–J) Ventral (H, I) and dorsal sight of the same late divider, presenting development of oral primordium and anlagen, arrowheads indicate a small anlage detached from undulating membranes anlage, arrows mark dorsal kineties anlagen. AZM, adoral zone of membranelles; BC, buccal cirrus; EM, endoral membrane; LMR, left marginal row; Ma, macronuclear nodule; PM, paroral membrane; PTC, pretransverse ventral cirri; PVC, postoral ventral cirri; RMR, right marginal row; TC, transverse cirri; 1~6, dorsal kineties. Scale bars = 30 µm.