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01b-vor710409-3

Fig. 1b: scopular zone and stalk in cross section

4 food vacuoles (fv). The helically contracted stalk is seen in cross section through the first turn of the helix. Lateral margins of the trochal band of basal bodies (bb). Body myonemes (my) converge aborally where they will enter the stalk. EM taken on 4/9/71 by R. Allen with Hitachi HU11A TEM. Neg. 2,400X. Bar = 2µm.
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