People have to distinguish between them if you these information is not image.

The octopus

is quite recognizable, with a head as big and round as an egg (which is the biggest difference between it and squid and squid), and a circle of 8 long wrists around the head, with webbing between the wrists.

Also the octopus usually walks (and of course sometimes swims) with its 8 feet spread out flat, whereas the squid and squid don't

Figure:

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Squid=Murray

The body is more slender than that of the octopus, with an umbrella-like head "hat", well-developed eyes, and 10 legs around the mouth, 2 of which are particularly long and end in numerous protrusions capable of sucking in objects, called suckers

Photo:

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