An octopus (pl.: octopuses or octopodes [a]) is a soft-bodied, eight-limbed mollusc of the order Octopoda (/ ɒ k ˈ t ɒ p ə d ə /, ok-TOP-ə-də [3]). The order consists of some 300 species and is grouped within the class Cephalopoda with squids, cuttlefish, and nautiloids.

Octopus is the largest genus of octopuses, comprising about 100 species. These species are widespread throughout the world's oceans. Many species formerly placed in the genus Octopus are now assigned to other genera within the family. The octopus has 8 arms, averaging 20 cm (8 in) long for an adult. [1] [2]

2025年1月25日 · An octopus is any eight-armed cephalopod mollusk of the order Octopoda. The true octopuses are members of the genus Octopus, a large group of widely distributed shallow-water cephalopods. Learn more about the anatomy, …

Octopus, a cold-blooded mollusk belonging to the Cephalopoda class, grouped with cuttlefish, nautiloid, and squids, has around 300 species. These giant-sized invertebrates, with their unique appearance, have been immensely popular as sea monsters in mythology, also being a part of several literary works.

The Octopodidae (lit. 'resembling eight foot') comprise the family containing the majority of known octopus species (about 175 species).

2023年8月25日 · There are currently more than 300 species of octopus recorded, and more get discovered every decade. To be knowledgeable about the anatomy, classification, and species within the octopus family, you don’t have to have a degree in marine biology.

2024年5月27日 · There are 13 families in the order Octopoda which contains approximately 300 species. Octopuses are incredibly diverse, with some species living in the deep sea, some species reaching 30 feet, and others not even reaching an inch!

The octopus (Greek Ὀκτάπους, “eight-legs”) is any cephalopod (class Cephalopoda, phylum Mollusca) belonging to the order Octopoda. An octopus is characterized by having eight arms and simple suckers without secondary armature (O'Shea 2006).

2017年7月11日 · The octopus is a sea animal famously known for its rounded body, four pairs of arms and bulging eyes. Octopus is in Cephalopoda class, Trachyteuthididae family and the order of Octopoda. This animal has a beak and a mouth that is at the center of the arms.

Octopuses are fascinating marine creatures known for their intelligence, adaptability, and unique physical characteristics. As members of the class Cephalopoda, octopuses belong to the order Octopoda, which comprises around 300 species.