Figure 7 in Developmental basis of limb homology in Pleurodiran turtles, and the identity of the hooked element in the chelonian tarsus

Figure 7. Forelimb development in Phrynops hilarii. Dorsal views of left limbs. A, stage 17; B, stage 18; C, stage 19; D, stage 20; E, stage 23. Abbreviations: 1–5, carpalia 1–5; I–V, digits I–V; c1, centrale 1; c2, centrale 2; c3, centrale 3; c4, centrale 4; i, intermedium; p, pisiform; Ra, radius; u, ulnare. Scale bars: 0.5 mm.