Figure 3
From: Developmental mechanisms underlying differential claw expression in the autopodia of geckos
SEM of claw development in Tarentola annularis . (A-C) Manual digits at stage 35 of development. A large claw is evident on digit IV of the manus (A), whereas the claw is small on digits V (B) and I (C). (D-F) Pedal digits at stage 36 of development. A large claw is evident on digit III (D), and small claw rudiments are present on digits V (E) and I (F). (G) Manual digit III at stage 37 of development. (H,I) Pedal digits at stage 38 of development. The large claw on digit IV (H) contrasts with the greatly reduced structure on digit V (I), where only a scale is now evident distally.