Rhizoprionodon longurio (class-specific)

Regression of 11 morphological measurements against PL in all R. longurio individuals from Class Two recovered ten cases of isometric growth and one case of allometric growth (Table 9). R 2 values varied from 0.19 (KC; Table 10) to 0.81 (FS; Table 9). The measurement DL showed significant negative allometry (Fig. 8b; Table 9). Regression of 11 morphological measurements against PL in all R. longurio individuals from Class Three recovered ten cases of isometric growth and one case of allometric growth (Table 10). R 2 values varied from 0.02 (UL; Table 11) to 0.49 (LS; Table 10). The measurement UL showed significant negative allometry (Fig. 8c; Table 10).

PHYLOGENETIC GENERALIZED LEAST SQUARES (PGLS)

Phylogenetic generalized least squares regression against PL of mean trait values for both S. leaeini and R. longurio, together with the eight taxa studied by Irschick et al. (2017), yielded statistical evidence of interspecific allometry in LS (Table 11). All other measurements did not differ significantly from isometry.