The difference is as follows:

1, the body structure is different: octopus is also called octopus, the head of the large compound eyes and eight contractible wrist; while the squid head is large, the front of the birth of 10 tentacles, the tail end of the fleshy fins in the form of a triangle.

2, the appearance of the shape is also different: usually, the octopus body is ovoid or oval, looks like a pill, the body surface generally does not have a water hole; and squid body narrow, present body conical, as if the pipe, cross-section for the circle.

3, different methods of consumption: octopus can be eaten raw, you can also cook cooked and then eat, and raw food is particularly good, raw octopus can feel the octopus jumping on the tongue; but squid shall be cooked and then eat. Because squid is cold in nature, people with cold spleen and stomach should eat less.

Expanded:

Head with a pair of well-developed gills around the mouth on either side. It is often active in the upper and middle layers of the shallow sea, with a vertical range of movement of more than a hundred meters. The body is elongated and long conical, feeding on krill, sardines, silversides, small males, etc., and is itself a prey for ferocious fish.

Eggs mature in batches, batches of output, the eggs are wrapped in gelatinous egg sheaths, each egg sheaths with the species of different packet of eggs a few to several hundred, different species of spawning volume also varies greatly, from a few hundred to tens of thousands.

Squid body with two gills as a respiratory organ; the body is divided into the head, a very short neck of the Chinese gun squid (commonly known as "squid"), the meat is tender, dried products called "dried squid", meat quality is excellent.

Seafood market at home and abroad is famous, the annual output of 40,000 - 50,000 tons, the main fishing grounds in the Gulf of Hainan, southern Fujian, Taiwan, Guangdong, Hebei Bohai Bay and Guangxi offshore, as well as the Philippines, Vietnam and Thailand offshore, with the South China Sea in the Gulf of Beibu, Bohai Bay, the squid is the best.

Squid, although it is customary to call them fish, in fact, it is not a fish, but living in the ocean mollusks, the body is elongated, long conical, the front end of the sucker. Squid body with two gills as a respiratory organ; the body is divided into the head, a very short neck and trunk.

The body is elongated and long conical, two of which are longer. Taxonomically, squids are animals belonging to the phylum Mollusca - Cephalopoda - Subclass Diptera - Decapoda. The head is flanked by a pair of well-developed eyes and brachiopods that surround the mouth.

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