Carpus and tarsus patterns in some Arabian lizards (Reptilia: Agamidae, Lacertidae, Scincidae)

Within the families Agamidae, Lacertidae and Scincidae, the carpal and tarsal elements, the sesamoidea and the ossification pattern show considerable variability. Furthermore, carpal and tarsal structure in the lizards studied here is not unique to the genera in question and identical or very similar conditions occur in other lizards. These elements contain sufficient anatomical information to make them taxonomically valuable.