REPRODUCTION AND DEVELOPMENT OF SCIAENIDAE 
115 
specimens), and they are extended almost all over the fins by the time the fish reach 
a length of about 125 millimeters, apparently increasing in density with age. 
The caudal fin remains pointed in specimens 75 millimeters long and the longest 
rays (although proportionately shorter than in smaller fish) are about equal to the 
length of the head. This fin is still moderately pointed in fish 150 millimeters long, 
but the longest rays then are notably shorter than the head. The caudal does not 
acquire the shape it has in adults, that is, with the upper lobe slightly concave and 
the lower one rather sharply rounded, until the fish reach a length of about 200 
millimeters. 17 
The blotches present in the smaller fish described in the preceding section become 
less distinct at a length of about 60 millimeters. In the preserved specimens exam- 
ined only traces are left in fish 75 millimeters long, and soon afterward they disappear 
and the fish are plain grayish above and silvery below. Only large specimens (of the 
preserved material examined) 200 millimeters and upward in length have traces of 
oblique lines running along the rows of scales above the lateral line. The dark 
cross line on the base of the caudal, present in small fish, has disappeared in specimens 
about 60 millimeters long. Dark dots on the dorsal and caudal fins increase rapidly 
in number as growth proceeds. In specimens about 100 millimeters long the caudal 
fin is quite dusky and distally almost black. The dorsal fins, too, are densely dotted 
and soon become dusky in color, and the spinous dorsal has a black margin (fig. 44). 
This species and C. regalis resemble each other closely. Beside the difference 
in the number of anal rays, the slight difference in the number of gill rakers, and 
vertebrae, pointed out elsewhere, it is evident that almost throughout life (that is, 
after the caudal fin becomes developed) C. nothus has a longer and more sharply 
pointed caudal fin, which never becomes truncate as in C. regalis. Although the 
fins, exclusive of the spinous dorsal, become covered with small scales in both species, 
those of C. nothus appear to be more densely scaled in adult specimens. 
DISTRIBUTION OF THE YOUNG 
It has been pointed out elsewhere (p. Ill) that no young under 9.5 millimeters in 
length were taken. Therefore, the early stages remain unknown. It has been stated, 
also (p. 1 12),, that all the young collected, exclusive of four specimens, were caught in the 
The shape of the caudal, because the fin was frayed in the specimen drawn, is incorrectly shown as round for the adult in Hilde- 
brand and Schroeder (1928, p. 299, fig. 175). It is correctly indicated in Ginsburg’s figure (1929, p. 81, fig. 5), which shows the upper 
lobe to be slightly concave and the lower one rather sharply rounded. 
