Formation and ossification of vertebral column in larval crimson snapper. A, Larvae on 1 DPH show developing notochord (NC); B, Larvae on 10 DPH show developing neural arch (NA); C, Larvae on 12 DPH show developing haemal arch (HA); D, Larvae on 16 DPH show developing neural spine, vertebral centra, 1st vertebra to 5th vertebra (V1 to V5) and haemal spine (HS); E, Larvae on 22 DPH show cartilaginous of vertebra centra, (V1 to V16). F) Larvae on 24 DPH show developing parapophysis (Pp), thoracic rib (TR) and ossification of vertebral centra, haemal spine; F, Larvae on 27 DPH show ossification of vertebral column.