The judicious use of facial hair and masking the inky obscurity of cephlapodic thinking behind a mask of dialectical materialism, could also prove to be an effective disguise.
Rumors that Queen Victoria herself was a squid monster were unfounded. Photographic evidence shows she was an octopus-monster not a squid monster.
In some cases the psychic perception filters would be transcended by portraiture.
sort of…(c) The National Trust for Scotland, Broughton House & Garden; Supplied by The Public Catalogue Foundation
By the later stages of Britain’s Industrial Revolution, squid monsters had become more adept at blending in unnoticed.
[Original gent borrowed from here https://s-media-cache-ak0.pinimg.com/originals/fc/55/0d/fc550db35b34ffd3dcf2e745a7a88177.jpg ]