Fig. 24

Isolated hyoid apparatus of A T. brevipes; B T. gracilis; C S. alberti; D A. occidentalis; in ventral and lateral view. bhy, basihyal; cbI, first ceratobranchial; cbII, second ceratobranchial; chy, ceratohyal; ghy, glossohyal; hhy, hypohyal. Scale bars = 1 mm