Figure 2

Female Poecilia vivipara showing the body landmarks used in this study: (1) most anterodorsal point of premaxilla, (2) most posterodorsal point of skull, (3) anterior insertion of dorsal fin, (4) posterior insertion of dorsal fin, (5) dorsal insertion of caudal fin, (6) ventral insertion of caudal fin, (7) posterior insertion of anal fin, (8) most posteroventral point of skull, (9) center of the eye, and (10) most posterodorsal point of opercle [ [23], [30]]. Landmarks 4–7 delimit the caudal peduncle.