THIRTEENTH ANNUAL REPORT inl 
carried into the sunlight the fishes sulk upon the bottom, display- 
ing, in addition to the black dorsal and tail, large irregular and 
very dark vertical blotches. 
The customary swimming or mid-tank phase is shown in (fig. 
1, plate 6). The phase with black fin and tail is represented in 
fig. 2 of the same plate. It is also shown in American Food and 
Game ‘Fishes, plate opposite page 430. The small cut, fig. 1, 
plate 7, shows the mottled phase. The last is usually maintained 
as long as the specimen is kept in the small photographic tank, 
but sometimes disappears for a few moments. 
Y Rep-MoutHep Grunt, (Haemulon flavolineatum). Ordinary 
coloration in mid-tank. Uniform pale golden yellow, with nar- 
row silvery stripes. 
Coloration when alarmed: The whole school bunches together 
at the bottom, all immediately assuming a dark-mottled appear- 
ance, the ground color becoming so dark that the fish is com- 
pletely changed. The dark blotches disappear at once when the 
disturbance ceases, the specimens, one after another, assuming 
their ordinary coloration, with, however, two lengthwise very 
dark bands, one extending straight from the snout through the 
eye to the tail, the other curved upward from the forehead to the 
end of the soft dorsal. These conspicuous bands show at inter- 
vals until the excitement caused by disturbing the fishes dies 
down. 
When specimens are placed in the photographic tank a fourth 
phase, entirely dark, is assumed and retained. This is shown 
in the left figure of plate 7, while the phase with two longitudinal 
bands is shown in the right figure of the same plate. When these 
two specimens were placed in the photographic tank, both in- 
stantly assumed and retained the dark unmottled phase. The 
striped phase of the fish at the right was produced by touching 
it repeatedly with a stick. 
Princess RockrisH, (Mycteroperca bowersi).* Three phases: 
Bright-red phase: Pale red ground color with bright-red spots 
everywhere. Pectorals yellow, all other fins with black edges. 
A slight plumbeous mottling, making the upper surfaces darker 
than under. When this occurs—usually when the fish is in mid- 
tank and over gravel bottom—the plumbeous blotches become 
red along base of the dorsal and top of tail. 
Dark-red phase: Usually assumed when the fish rests against 
the dark tank walls, the paleness of color deepens quickly to 
* The identification of these specimens is not yet certain. 
