Figure S1. Landmark placements for geometric morphometric analyses: (1) tip of snout; (2) posterior tip of maxilla; (3–6) anterior, superior, inferior and posterior of eye; (7) superior of cranium perpendicular to 6, indicated by broken line; (8) superior posterior of cranium; (9) anterior intersection of opercule and subopercule; (10) inferior intersection of opercule and preopercule; (11) ventral margin of opercula; (12) ventral margin of mandible; (13) anterior insertion of dorsal fin; (14) anterior insertion of adipose fin; (15–16) superior and inferior insertions of caudal fin; (17) junction of caudal fin at lateral line; (18) anterior insertion of anal fin; (19) anterior insertion of pelvic fin; (20) anterior insertion of pectoral fin.