1, species: the squid is a mollusk of Cephalopoda, and the octopus is a mollusk of Octopoda. 2. Appearance: The head of the squid is spherical, and its top is the mouth. The body of the octopus is oval with eight wrist feet. 3. Living habits: Squid likes to inhabit the deep water in the open sea, and octopus is widely distributed in the tropics.

What are the differences between squid and octopus 1, and the varieties are different?

There are different species between squid and octopus. Among them, squid is a mollusk of Cephalopoda, and its aliases are cuttlefish and cuttlefish, with more than 350 species, while octopus is a mollusk of Dipoda, with more than 250 species, and the more common ones are common octopus and Beitaiping giant octopus.

2. Different shapes

The shape of squid is different from that of octopus. The head of squid is spherical, the top of which is the mouth, with ten brachiopods, including eight short brachiopods and two long brachiopods. The body of squid has a thick calcareous inner shell, while the body of octopus is oval with eight brachiopods.

3. Living habits

The living habits of squid and octopus are different. Among them, squid likes to inhabit the deep water in the open sea, and will swim to repulse bay from April to June every year to spawn and reproduce, mainly feeding on mollusks, small fish and shrimps, while octopus is widely distributed in tropical areas, mainly feeding on crustaceans, plankton and petabranchia.