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Fig. 3 | BMC Evolutionary Biology

Fig. 3

From: Homeosis in a scorpion supports a telopodal origin of pectines and components of the book lungs

Fig. 3

Wild type (a, b) and inferred homeotic mutant (ck) book lung segments. (a, b) External (a) and internal (b) views of wild type stigmata on left area of sternite 6. (c, d) External (c) and internal (d) views of homeotic stigmata on right of sternite 5. (e, f) External (e) and internal (f) views of homeotic stigmata on right of sternite 6. (g, h) Myofibers developed at the internal roots of O5 depression (g, red arrow in d) and O6 protrusion (h, red arrow in f). (ik) External (i, j) and internal (k) views of homeotic stigmata on left of sternite 5, showing myofibers (red arrows) and stigmata (st, blue arrow)

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