Fig. 5

Middle to late morphogenetic stages of Heterodeviata nantongensis nov. sp. after protargol staining. A, B Ventral (A) and dorsal (B) view of the same middle divider, arrow in (A) indicates anlage IV of the opisthe and arrowheads in (A) denote the anlage V, arrowheads in (B) indicate the dorsal kinety anlage 2 of the proter and arrows in (B) showing the old dorsal kinety, in this stage, the macronuclear nodules fuse into a single mass. C, D Ventral (C) and dorsal (D) view of the same middle-late divider, arrowheads in (C) indicate the anlage V and ellipses encircle the anlage IV of the proter and opisthe, arrowheads and arrows in (D) indicate the dorsal kinety anlage 2 of the proter and opisthe, separately, in this stage, dorsal kinety anlage 2 of the proter migrates rightward and appears to the right of new right marginal row 2. E, F Ventral (E) and dorsal (F) view of the same middle-late divider, arrow indicates buccal cirrus and arrowhead in (E) showing anlage V migrates leftward and arrowheads in (F) indicate the dorsal kinety anlage 2 of the proter and opisthe, in this stage, dorsal kinety anlage 2 of the opisthe migrates rightward and appears to the right of new right marginal row 2. G, H Ventral (G) and dorsal (H) view of the same middle-late divider, ellipse in (G) encircles the parental marginal cirri and arrowheads in (G) indicate the micronuclei, and arrows in (H) indicate caudal cirrus for the proter and opisthe and arrowheads in (H) denote dorsal kinety anlage 2. IV, anlage IV; DK2, dorsal kinety 2; DKA1, 2, dorsal kinety anlagen 1, 2; EM, endoral membrane; FVC, frontoventral cirri; LMA1, 2, 3 left marginal anlagen 1, 2, 3; Ma, macronuclear nodules; Mi, micronuclei; PM, paroral membrane; RMA1, 2, right marginal anlagen 1, 2. Scale bars = 30 μm