2. The characteristics are different: the squid body is conical, pale, with light brown spots, big head and touching feet 10 in front. Octopus has 1 pair of degenerated needle-like inner shells or no inner shells. If there is a toothed tongue, the lateral teeth of the toothed tongue are generally single pointed. The stomach and cecum are located at the back of digestive gland. The front end of the squid head is spherical, with a mouth at the top, an oral membrane around it and five pairs of wrists around it. The front part of mullet body is cylindrical, and the back part is slightly flat.
3. Geographical distribution is different: mullet is distributed in warm and tropical waters all over the world, and its main habitat is coastal sand and mud bottom waters. Squid is distributed in the world's oceans, mainly living in shallow waters along the tropical and temperate coasts, and often moves to deeper waters in winter. Octopus is widely distributed in tropical and temperate waters all over the world. Squid is mainly distributed in tropical and temperate shallow seas.
Extended data:
Precautions:
1, people with a history of urticaria and cancer patients should not eat; People with high cholesterol, gallstones, hyperuricemia and gout eat less.
2, the applicable population of octopus: the general population can eat. Suitable for people with weak constitution, deficiency of qi and blood and malnutrition, and suitable for women with insufficient milk.
3, octopus taboo: octopus mouth and eyes are sand, when eating, it must be squeezed out.
4, the meat is tender without bone spurs and cool, so add ginger when eating.
5, octopus and beer are similar, and the same food causes gout.
Baidu encyclopedia-squid
Baidu encyclopedia-octopus
Baidu encyclopedia-squid
Baidu encyclopedia-mullet