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The Cubicle [building in shade], verso, 1959
The Cubicle [building in shade], 1959
17- Paralichthys albiguttus, Individual (B) on black background (1 sq. cm. circles) from August 1, 4:30 p.m. to August 2, 11 a.m. Probably not fully adapted; 18- P. albiguttus (E) 10 cm long, on black and white background (1 sq. cm. circles.... On this background the specimen was nearly uniformly gray much of the time, and the simulation of the figures in this background was at not time as good as it was in larger specimens, although on the finer-grained backgrounds it was quite good, showing that the maximum area of figures successfully simulated depends upon the size of the fish. 19-, P.Albiguttus, individual (C) 14 cm. long on black and white background (1 cm. squares..... 20- P.albiguttus (E) 10 cm long, on black and white background (5 mm squares)....
23- Paralichthys albiguttus, Individual (B) on black and white background (5 by 10 mm. rectangular), long axis of the fish parallel with short axis of rectangles... 24- Individual (B) on same background, long axis of fish continuously parallel with long axis of rectangles. 25- Individual (B) on the same background continuously rotated on a disk under the crystallizing dish.... 26- Individual (B) on black and white background (1 sq. cm. circles, area of white equal to that of black).....
9- Paralichthys albiguttus, 14 cm. long, individual (B), on black and white background (2 mm. squares) from July 29, 11 a.m. to July 30, 3 p.m., after having been adapted to the background shown in figure 10. This indiviidual was extensively used in the study of adaption on artificial backgrounds. It is represented in many....figures. Note that numerous dark spots have appeared in the light areas shown in figure 10, and that the light spots in the dark areas have become more numerous and more conspicuous. 10- Individual (B) on black and white backgroune (5 mm. squares) from July 25, 2 p.m. to jUly 26, 11:30 a.m., after having been adapted to a white background. Note that the three very light gray areas around the ocelli...have become much darker and other dark spots have appeared. 11-Individual (B) on black and white backgroune (2 cm. squares) from August 1, 9 a.m., to 4:30 p.m., after having been adapted to 1 cm. squares, shown in figure 12. Note that the pattern has changed very little.12-Individual (B) opn black and white backgroune (1 cm. squares) from July 31, 11:40 a.m., to August 1, 9 a.m., after having been on (1 sq. cm. circles) from July 30, 3 p.m.., to July 31, 11:40 a.m. Note that the dark areas are darker than in figure 10.
1-Paralichthys albiguttus, 20 com. long, on fine variegated shells, yellow predominating partly buried as usually found in nature. 2-Paralichthys albiguttus, same individual two minutes later with the shells removed. 3- Paralichthys albiguttus, w1 cm long, on coarse shells of the same kind, partly buried, from August 16 to 19. 4-Same individual two minutes later with shells removed. Note that the pattern is much coarser than in figure 2 on the fine shells. In both the skin was distinctly yellowish in color.
13-Paralichthys albiguttus, Individual (B) on a smooth white background continuously from July 23, 2 p.m., to July 25, 10 a.m. It was alternately on white and on black about equal time during the preceding seven days. The skin actually appeared much whiter and less mottled and the animal less conspicuous than the photograph indicates. This is partly due to the shadow in the background along the ventral side. In specimens kept continuously on white for two months the skin became much more uniformly white. 14- Individual (B) on black and white background (circles 5 mm. in diameter) from August 11, 12 m., to August 13, 1:30 p.m... 15- Individual (B) on black and white background 2 cm. squares from August 24, 11 a.m., to August 27, a.m., after having been adapted to white... 16- Individual (B) on black and white background (circles 5 mm. in diameter) from August 15, 10 a.,m., to August 16, 9 a.m. This photograph shows one of the most remarkable concealing patterns observed. The fish appeared to contain numerous holes.
48- Paralichthys albiguttus, 12 cm long, fully adapted to a very light gray background. This specimen continuously appeared somewhat darker than the background. Note that the three ocelli have almost entirely disappeared. 49- Individual (B)..., on black and white background (dots 0.5 mm. in diameter).... Dots of this size, no matter how numerous, had no effect except perhaps to cause the skin to become uniformly slightly grayer. 50- Individual (B) on black and white background (dots 1 mm in diameter)...after having been fully adapted to 1 cm. squares. These spots have no appreciable effect on the skin unless they are more numerous than they are in this background. 51- Individual (B) on black and white background (dots 1 mm. in diameter)....after having been fully adapted to dots 2 mm. in diameter. Note that the posterior ocellus is much darker than on white, but that the two anterior ones are not....
21- Paralichthys albiguttus, 16 cm long, in shallow bluish-gray mottled granite pan.... Excellend simulation of the background on the entire surface except the three ocelli, which are nearly black. 22- Same specimen photographed in the granite pan....very shortly after mechanical stimulation. Note the contrast due to the enlargement of the regions around the ocelli and the appearance of numerous dark and light spots. These regions and spots were considerably more pronounced immediately after stimulation. They become less conspicuous rapidly but it usually requires several minutes for them to disappear completely. They usually also appear when the animal is feeding.
Live Salmon (sic) with disease, under shade of a tree. December 1903
Paralichthys albiguttus, individual (B) on black and white background (dots 3 mm. in diameter).... 53- Individual (B), on black and white background (dots 3 mm. in diameter).... -54 Individual (B), on black and white background (dots 2 mm. in diameter)....after having been fully adapted to white. 55- Individual (B), on black and white background (dots 5 mm. in diameter).....
Concrete ponds used for mussel culture experiments. In the dry pond on the left is shown the method of dividing into smaller units by means of screens. Bridges are shown over the two pondson the right. These furnish shade for the fish and prevent their jumping over the screens as well as serving the purpose of bridges for the operators when seining the fish. Earth ponds and shed-covered troughs appear in the background
In the Shade of the Red Cedars. This photograph, taken at Vancouver, B.C., represents probably the last that will ever be made of the present personnel of the New England Fish Co. Rirectors Rich and Goodspeed occupy the front seat, to the right is Greer Starratt, general manager, and looming up behind is the figure of Mr. MacPherson, a well-known Vancouverite
31- Paralichthys albiguttus (F), 14 cm long, in large, shallow granite pan (variegated, dark blue and white).... Note the small white spots shown in irregular rows across the fish. 32- Individual (F) on black and white background (dots 2 mm. in diameter). The white spots in the irregular rows have become more conspicuous, but the pattern is essentially the same, although the spacial interrelationship of the light and dark areas in the background is very different.... 33- Individual (C).... in...granite pan...34- Individual (C) on black and white background (2 mm. squares).... Note that the patterns produced by these two very different backgrounds are essentially the same.
Paralichthys albiguttus, 15 cm. long, on green...
Paralichthys albiguttus, 15 cm. long, on blue....
44-Paralichthys abliguttus, (G), 22 cm long, head continuously on white and tail on back.... This specimen was taken from a black aquarium and was fully adapted to black in the beginning of the experiment. 45- Individual (G), one eye on white the other on black continuously.... 46- Individual (G), continuously with head on white, body on black.... 47- Individual (G), head on black, body on white....
Paralichthys albiguttus, 20 com long, on vermillion.
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