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  2. Opisthoteuthis agassizii - Wikipedia

    en.wikipedia.org/wiki/Opisthoteuthis_agassizii

    Opisthoteuthis agassizzi octopuses are small compared to most octopuses; males weigh up to four times more than females, and have a mantle length from 1 up to 2 + 1 ⁄ 2 inches. Males suckers are also much larger. The largest specimen, a male, had a mantle (the body not including the octopus' arms) reaching 63 mm, a little under two and a half ...

  3. Common octopus - Wikipedia

    en.wikipedia.org/wiki/Common_octopus

    The common octopus (Octopus vulgaris) is a mollusk belonging to the class Cephalopoda. Octopus vulgaris is one of the most studied of all octopus species, and also one of the most intelligent. It ranges from the eastern Atlantic, extends from the Mediterranean Sea and the southern coast of England , to the southern coast of South Africa.

  4. Octopus - Wikipedia

    en.wikipedia.org/wiki/Octopus

    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.

  5. Mantle (mollusc) - Wikipedia

    en.wikipedia.org/wiki/Mantle_(mollusc)

    The mantle cavity is a central feature of molluscan biology. This cavity is formed by the mantle skirt, a double fold of mantle which encloses a water space. This space contains the mollusk's gills, anus, osphradium, nephridiopores, and gonopores. The mantle cavity functions as a respiratory chamber in most mollusks. In bivalves it is usually ...

  6. Umbrella octopus - Wikipedia

    en.wikipedia.org/wiki/Umbrella_octopus

    Opisthoteuthidae are a group of octopuses characterized by a web of skin in between their arms. They broad U-shaped shell that support muscles for a pair of small fins on the mantle, these fins are far less developed than other families in Cirrina and essentially only act as stabilizers when the animal swims (using a medusoid motion of the arms and webbing). [1]

  7. Wunderpus photogenicus - Wikipedia

    en.wikipedia.org/wiki/Wunderpus_photogenicus

    The thin-walled mantle of the wunderpus has weak musculature and wide aperture. [5] The head has a distinct neck area and is Y-shaped with the eye on each branch of the 'Y'. The head of a male wunderpus is wider than its mantle and for female wunderpus, their mantle is wider than their head. For females, this is due to the large ovary in their ...

  8. Octopus sinensis - Wikipedia

    en.wikipedia.org/wiki/Octopus_sinensis

    The East Asian common octopus is adapted to a benthic life at the bottom of the sea. Octopus sinensis has long arms with many suckers used for catching prey, a mantle without a rigid skeleton, which allows them to inhabit and hunt in small spaces and crevices in the seabed, horizontal pupils, and versatile skin with ability to change colors and camouflage themselves with the sea floor.

  9. Opisthoteuthis chathamensis - Wikipedia

    en.wikipedia.org/wiki/Opisthoteuthis_chathamensis

    O. chathamensis reaches a maximum length of 18 cm TL, and a mantle length of 5.4 cm. [5] They are described as having subequal arms with around 41-45 suckers in males and 45-55 suckers in females. [6] Their oral surface and the webbing between their tentacles is maroon and the suckers are a pale cream. [7]