LAROCHE and RICHARDSON: DEVELOPMENT AND OCCURRENCE OF ROCKFISHES 



Table 4. — Measurements (millimeters) of larvae and juveniles ofSebastes flavidus from waters off Oregon. 



'Usually fourth or fifth in larvae, fifth or sixth in juveniles. 



^Usually in anterior one-fourth of fin 



^The second spine in larvae, the third spine in juveniles. 



''Forming 



^Bump 



'Transtorming 



'Pelagic luvenile 



'Benthic juvenile 



along the maxillary, and on the cheek and oper- 

 culum. Pigment increases around the orbit (even- 

 tually lining it), and around the posttemporal 

 spine, extending anteriorly over the head. 

 Melanophores line the anterior margin of the 

 cleithrum beneath the operculum. 



Pigment on the gut becomes less intense as 

 body musculature increases. The dorsal body sur- 

 face is pigmented from nape to caudal peduncle in 

 both species by 11 mm. Large stellate 

 melanophores beneath the soft dorsal fin increase 

 in number and are aligned along the muscles sur- 



rounding the dorsal pterygiophores, sometimes 

 appearing as lines of pigment. This is the densest 

 pigmentation on larvae. Internal and external 

 melanophores are added along the body midline 

 anteriorly from the caudal peduncle forming a line 

 along the notochord which extends to the head by 

 ~14 or 15 mm. Melanophores extend ventrolater- 

 ally from the nape to the lateral midline by -14-16 

 mm and are added posteriorly along the dorsolat- 

 eral body surface with development. Initially 

 these melanophores appear along the myosepta, 

 but this pattern becomes obscured as 



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