Formation and ossification of pectoral fins in larval crimson snapper. A, Larvae on 3 DPH show developing pectoral fins (PCF); B, Larvae on 10 DPH show pectoral fins and cleithrum; C, Larvae on 19 DPH show developing fin rays (FR), fin plate (FP), coracoid-scapula (CS) and ossification of cleithrum; D, Larvae on 25 DPH show developing scapular foramen (SF), metacleithrum lower (ML), metacleithrum upper (MU) and ossification of fin rays; E, Larvae on 32 DPH show cartilaginous of coracoid (Co), scapula (Sc), proximal pterygiophore (PP), 1st proximal pterygiophore to 4th proximal pterygiophore (PP1-PP4); F, Larvae on 36 DPH show ossification of pectoral fins.