Fig 9. Isolated epipterygoid, stapes, quadrate, intercalary cartilage, and hyoid apparatus of Trachylepis species examined.

Light gray elements = T. laevis, medium gray elements = T. sulcata, and dark gray elements = T. gonwouoi. A, right epipterygoid in anterior view. B, right stapes in posterior view. C, right quadrate in the following views from left to right: posterior, anterior, lateral, medial, dorsal. D, right intercalary cartilage in dorsal (top) and ventral (bottom) views. E, hyoid apparatus in ventral view. Abbreviations: bhy, basihyal; cbI, first ceratobranchial; cbII, second ceratobranchial; chy, ceratohyal; ept-fco, pterygoid facet of the epipterygoid; ghy, glossohyal; hhy, hypohyal; icc, intercalary cartilage; mac, mandibular condyle of the quadrate; macf, mandibular condyle foramen; q, quadrate; q-pt, pterygoid facet of the quadrate; qc, quadrate medial column; qcc, quadrate cephalic condyle; qco, quadrate conch; qf, quadrate foramen; sqn, squamosal notch; st, supratemporal; stp, oval footplate of stapes. Scale bars = 1 mm.