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Chambered nautilus, showing chambers with soft body in outer chamber. It is closely related to the squids and cuttlefishes, but has the body enclosed in a flat-spiral shell.

Nautilus

Chambered nautilus, showing chambers with soft body in outer chamber. It is closely related to the squids…

As the name indicates, the octopus has eight arms instead of ten, as in the squids and cuttles.

Octopus

As the name indicates, the octopus has eight arms instead of ten, as in the squids and cuttles.

An illustration of pinnoctopus cordiformis, a type of cephalopods. The cephalopods are the mollusc class Cephalopoda characterized by bilateral body symmetry, a prominent head, and a modification of the mollusk foot, a muscular hydrostat, into the form of arms or tentacles. Teuthology, a branch of malacology, is the study of cephalopods.

Pinnoctopus Cordiformis

An illustration of pinnoctopus cordiformis, a type of cephalopods. The cephalopods are the mollusc class…

The squid is the best example of the cephalopod group. It is abundant along the Atlantic coast. Squids swim in schools and feed on young herring and mackerel.

Squid

The squid is the best example of the cephalopod group. It is abundant along the Atlantic coast. Squids…