Squid is a mol lusk with an elongated soft body, large eyes, eight arms, and two tentacles in the superorder Decapodiformes, though many other mol lusks within the broader Neocoleoidea are also called squid despite not strictly fitting these criteria. Like all other cephalopods, squid has a distinct head, bi lateral symmetry, and a mantle. They are mainly soft-bodied, like octopuses, but have a small internal skeleton in the form of a rod-like gladius or pen, made of chitin