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 axi

Descrission:

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)......