“The squid’s usual hue is a light shade of pearly gray or gray-white, peppered with small dots of red or reddish brown. . . .

[T]he color-changing ability of many squids works in reverse to that of the octopus. Instead of going into a “fireworks” type of display, they tend to turn pale or lose color to the point of becoming practically invisible.”

—Joseph J. Cook & William L. Wisner, The Phantom World of the Octopus and Squid, 1965.