FIGURE 7 in A review of the marine and brackish-water species of Testudinella (Rotifera: Monogononta, Testudinellidae), with the description of two new species

FIGURE 7. Testudinella obscura, scanning electron microscope photographs of trophi. A. Complete set, frontal view. B. Detail left manubrium. C. Complete set, caudal view. D. Complete set, lateral view. Scale bars: 10 µm. a: alula, dc: dorsal chamber, fo: fulcrum opening, mc: median chamber, sc: sub-ventral chamber, vc: ventral chamber.