Fig. 8. Gape cycle times (GCT) (in ms) plotted against body lengths (mm) of various craniates. In these plots, body length is represented by total length, standard length, snout–vent length, carapace length and disc width. Horizontal gray lines indicate residual means, broken lines are 95% confidence intervals of the best-fit, least-squares regression (black line). (A) Log-transformed plot of GCT in aquatic feeding craniates. (B) Log-transformed plot of terrestrial feeding tetrapod GCT.