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Competent and metamorphosis larva of P. pectinifera. a, b Ventral (a) and left side (b) view of competent 20-dpf larva. c–e Metamorphosis larva in 24 h after settlement. c Larval ventral side of metamorphosis larva. d, e attend on aboral and oral side of juvenile rudiment, respectively. Dot lines indicate juvenile rudiment and asterisk marks do developed juvenile arms. Arrow heads point absorbed larval body and arrows do primary podia. Size of scale bar is 250 µm
