FISHERY BULLETIN: VOL. 79, NO. 2 



Table 6. — Measurement.s (millimetersl of larvae and juveniles of Sehastes zacentrus. Specimens above dashed line are undergoing 



notochord flexion. 



'Usually fourth or fifth, 

 ^Usually midfin, 

 •'The second spine. 



''Forming. 



^Bump. 



6Transformlng. 



'Pelagic juvenile, 

 6Benthic juvenile, 

 ^Nuchal spine overgrown. 



lower jaw; narrow interorbital distance (27.7'yJ^ 

 HL); and long, deeply serrated, parietal spine 

 (26.5% HL). Later stage larvae change little 

 in overall appearance from the smallest larva, 

 except for addition of melanophores along the 

 dorsal body surface beneath the spinous and soft 

 dorsal fins, along the dorsal surface of the 

 caudal peduncle, and at the articulation of some 

 dorsal soft fin rays of specimens >12.5 mm. A row 

 of melanophores along the lateral midline and a 



248 



strong, sharp preocular spine develop during the 

 transformation period. Meristic characters, pres- 

 ence of a preocular and lack of a supraocular spine, 

 the flat-convex shape and narrow width of the 

 interorbital space, and stout, relatively long, sec- 

 ond anal spine serve to distinguish pelagic and 

 benthic juveniles. 



General Development. — The smallest specimens 

 (7.4-8.5 mm) of S. zacentrus are undergoing the 



