Fig. 8 in Ultrastructural Studies on a Model Tintinnid - Schmidingerella meunieri (Kofoid and Campbell, 1929) Agatha and Strüder-Kypke, 2012 (Ciliophora). I. Somatic Kinetids with Unique Ultrastructure

Fig. 8. Schematics of somatic kinetids in Schmidingerella meunieri, namely of a dikinetid (A) and a monokinetid (B). The postciliary ribbons consist probably of four or five microtubules. The structure of ribbon III is somewhat variable, ranging from one layer containing four microtubules to two layers with six microtubules as in ribbon I. 1–9, triplets 1–9; I–III, extraordinary microtubular ribbons I–III; D, desmose; Kd, kinetodesmal fibril; Pc, postciliary ribbon; T, transverse ribbon.