Development of Eggs, Larvae and Juveniles of the Labrid Fish, Halichoeres poecilopterus, Reared in the Laboratory.

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Embryonic, larval and juvenile development of the labrid fish, <I>Halichoeres poecilopterus</I>, is described using a laboratory-reared series. The eggs, measuring 0.60-0.72mm in diameter, were pelagic and spherical with a single oil globule (0.12-0.16mm in diameter). Hatching occurred 18h 48 min after spawning. The newly-hatched larvae, measuring 1.46-1.70mm TL, had 8-11+16-18 myomeres. A conspicuous melanophore appeared on the dorsal finfold 8h after hatching, at ca. 2mm TL. The yolk was completely absorbed 3 days after hatching, at 2.52-2.72mm TL. Flexion of the notochord started at ca. 6mm TL and was finished at ca. 8mm TL. Aggregate numbers of all fin rays were completed at ca. 14 mm TL. Squamation was almost completed at ca. 20mm TL.
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