Figure 3 in The Macrobiotus ariekammensis species complex provides evidence for parallel evolution of claw elongation in macrobiotid tardigrades

Figure 3. Macrobiotus ariekammensis ariekammensis from Svalbard – buccal apparatus and the oral cavity armature seen in PCM: A, dorsoventral projection of the entire buccal apparatus; B, C, oral cavity armature visible from dorsal (B) and ventral (C) views, respectively; D, E, placoid morphology visible from dorsal (D) and ventral (E) views, respectively. Filled flat arrowheads indicate a single tooth in dorsal portion of the third band of teeth in the oral cavity, empty arrow indicates cuticular spike, empty indented arrowheads indicate central constrictions in first macroplacoids and faint subterminal constriction in second macroplacoid. Scale bars in µm.