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Stacks of 4 or 5 kinetodesmal fibers (kd) occupy the
longitudinal ridges in a cross-sectioned cell. The kds lie along the
right side of each ridge (cell’s left side), and as the kds are
tapered, the smallest cross sections lie closest to the ridge tip and
these sections are also closest to the distal tips of the kds. Such a
kd arose from basal bodies (bb) 4 or 5 cortical units posterior
to the plane of the cross-section. Lateral ridges (see Figures 5 and
6) do not contain kds. tric, trichocyst. EM taken on 12/28/74
by R. Allen with Hitachi HU11A TEM. Neg. 17,500X. Bar = 0.25µm.
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