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Fig. 29: scopula is encircled by modified cilia and sheath

The scopula, stalk-forming region, is outlined by a circle of basal bodies that produce short modified cilia. Other basal bodies lie within this circle. The sheath is secreted outside the circle of cilia. Fibers from linkage complexes (arrow) enter the proximal ends of these basal bodies. my, myoneme; cop, coated pit; pp, pellicular pore. EM taken on 2/24/72 by R. Allen with Hitachi HU11A TEM. Neg. 19,500X. Bar = 0.5µm.
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