SEM images of Sicuophora multigranularis. (A) Left side view showing the oral groove (arrows) and its convex left side as well as the naked region without cilia at the posterior body region (double arrowheads), and two very different sides. Scale bar = 50 μm. (B) Right side view, showing the densely arranged ciliary rows and the glabrous region without cilia in the posterior body region. Scale bar = 50 μm. (C) Detail of specimen shown in Fig. 2A. Note the sparely arranged cilia on the cell margin. Scale bar = 10 μm. (D) Detail of specimen shown in Fig. 2B. There is a conspicuous naked area on the right side near the posterior body end. Scale bar = 10 μm.