Drass et a\: Larva\ development of Lut/anus campechanus 



513 



Figure 3 



Early flexion and flexion reared Lutjanus campechanus larvae: (A) 3.8 mm, 12 DAH, 

 from AL: iB) 4.4 mm, 1-3 DAH, from AL; (Cl. 4.9 mm, 14 DAH, from AL. 



present by 9.6 mm, and by 12.2 mm the forebrain region 

 was covered with many small melanophores. An internal 

 nape melanophore was present at 3.1 mm and persisted 

 until overlying tissue obscured it. Pigment did not appear 

 on the operculum until 5.5 mm, and by 9.6 mm additional 

 small melanophores were present dorsal to the operculum 

 pigment and posterior to the orbit. Pigment first appeared 

 on the tip of the premaxilla at 9.6 mm and increased over 

 the snout and on the lower jaw by 12.2 mm. The head 



region and jaws of the 26.3-mm specimen were densely 

 covered with pigment. A melanophore lying just anterior 

 to the cleithral symphysis first appeared by 2.4 mm (6 

 DAH) and remained visible throughout the developmen- 

 tal series until becoming obscured by tissue in fish larger 

 than 12.0 mm. 



Body Numerous melanophores were scattered over the 

 yolk sac and dorsal surface of the gut in the smallest 

 larvae. The number of melanophores over the gut and 



