Table 3.

Ontogenetic disparities and average relative skull lengths of adult specimens (PC1) of 17 gymnotiform species

Species	Ontogenetic disparity	PC1
A. albifrons	0.008	0.000
A. baleanops	0.020	−0.087
B. brevirostris	0.010	−0.053
C. compsa	0.006	0.039
C. samueli	0.006	0.097
G. hypostomus	0.070	0.305
G. carapo	0.014	−0.021
G. coropinae	0.014	−0.144
P. gimbelli	0.006	−0.079
S. calhamazon	0.011	−0.096
S. elegans	0.016	−0.164
S. hagedornae	0.048	0.223
S. macrurus	0.008	−0.035
S. montanus	0.052	0.234
S. nattereri	0.018	−0.123
S. orinoco	0.011	−0.048
S. orthos	0.018	−0.049