pectoral bud – Swelling at site of future pectoral fin; anlage of pectoral fin.
pelagic – In the water column as distrinct from substrate-associated; neither necessarily planktonic
nor oceanic.
pelagic egg – Egg which floats freely in the water column, often slightly positively buoyant. pelagic juvenile – Pre-settlement juvenile of a species that is benthic or reef-associated as an adult. pelvic bud – Swelling at site of future pelvic (ventral) fin; anlage of pelvic fin.
postanal mymeres – Myomeres posterior to the posterior margin of the anus; includes terminal
myomere from which urostyle forms.
postcleithrum – Bone of the pectoral girdle that may bear a small spine just dorsal to the pectoral-fin
base in a few families (for instance, Lutjanidae, see Figs 79 D-E or 80 D-E). postflexion larva – Developmental stage from formation of the caudal fin (hypural elements vertical) to attainment of full external meristic complements (fin rays and scales) and loss of
temporary specializations for pelagic life (Fig. 4 C).