Figure 1.

Pachydactylus turneri (a) representing the plesiomorphic (=climbing) subdigital condition for the Pachydactylus Group—and the four species of burrowing geckos, (b) Colopus wahlbergii, (c) Chondrodactylus angulifer, (d) Palmatogecko vanzyli, and (e) Palmatogecko rangei. Digital modifications in the burrowing genera are revealed in ventral surface (a₁, b₁, c₁, d₁) and phalangeal element (a₂, b₂, c₂, d₂, e₂) illustrations of digit IV of the manus. Ventral aspect of the entire manus (e₁) is shown for Palmatogecko rangei. Note the spinose scales (b₁, c₁, d₁) present on digits of the burrowing taxa.