. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. 298 < \''mi;\] \ PISH ami GAME The preopercle with its long curved spine is quite conspicuous. Growth r tin- livvihv tlir iiilicr iipcrcular elements obscures their margins excepl for pari of the line demarking the interoperele from tin- subopercle. The lower angle of the preopercle is also overgrown. The opercle imu extends back and its upper lobe lies over the base of the pectoral fin. The principal exil of the water pas
. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. 298 < \''mi;\] \ PISH ami GAME The preopercle with its long curved spine is quite conspicuous. Growth r tin- livvihv tlir iiilicr iipcrcular elements obscures their margins excepl for pari of the line demarking the interoperele from tin- subopercle. The lower angle of the preopercle is also overgrown. The opercle imu extends back and its upper lobe lies over the base of the pectoral fin. The principal exil of the water passing over the gills is marked by ;i wide, well-defined groove at the upper limit of the oper- culum. Both pairs of nares have developed definite tubes by this time. The eyes have advanced so thai they now form part of the outline of the head. Melanin in tl \<'s has increased somewhat, following the pattern previously described. The lower halves of the pectoral fins now have incised margins and their rays are well re 139. Ten-week fish. Total length mm. The membrane of the anal fin shows slight incision. The dorsal fins show no significant change. The caudal rays are well defined except at the distal ends which do not reach the margin of the fin. From their termination to the margin of the membrane, they are represented by delicate undulating lines, several of which extend out from the end of each ray. If such a condition existed in any of the other fins during their development, it was overlooked. The large dendritic melanophores seen throughout the development in various parts of the body now persist only on the pectoral fin where they form three or four ill-defined bars on or close to the rays. Two rows of somewhat smaller melanophores are situated across the base of the pectoral fins. At this time, the color of the fish is imparted dominantly by erythrophores which have shown great increase in numbers. They are now found on all parts of the body and occasi
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