Fig. 1. (A) Lateral view of the head of a Trapelus pallida specimen with the skin, the jugal, the postorbital and the squamosal bones removed, thus exposing the m. adductor mandibulae externus superficialis posterior. The muscle originates tendinously at the dorsal aspect of the quadrate and inserts broadly along the lateral aspect of the dentary. (B) Ventral view of the right hindlimb and tail of Trapelus illustrating the insertion of the m. caudofemoralis onto the femur.