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Cephalopod limbs bear numerous suckers along their ventral surface as in octopus, squid and cuttlefish arms and in clusters at the ends of the tentacles (if present), as in squid and cuttlefish. [9] Each sucker is usually circular and bowl-like and has two distinct parts: an outer shallow cavity called an infundibulum and a central hollow ...
They have eight limbs like other Coleoidea, but lack the extra specialised feeding appendages known as tentacles which are longer and thinner with suckers only at their club-like ends. [132] The vampire squid (Vampyroteuthis) also lacks tentacles but has sensory filaments. [133]
The seven-arm octopus is so named because in males, the hectocotylus (a specially modified arm used in egg fertilization) is coiled in a sac beneath the right eye. Due to this species' thick, gelatinous tissue, the arm is easily overlooked, giving the appearance of just seven arms. However, like other octopuses, it actually has eight. [5]
Octopodiformes is a superorder of the subclass Coleoidea, comprising the octopuses and the vampire squid.All living members of Octopodiformes have eight arms, either lacking the two tentacles of squid (as is the case in octopuses) or modifying the tentacles into thin filaments (as in vampire squid).
The video reveals the octopus's white tentacles gradually unfurling from their rocky hiding place. As if performing a magical transformation, the creature swiftly changes color, adopting a vibrant ...
Octopus (lit. 'eight foot') 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]
What “Charlotte’s Web” did in the popular imagination for the humble, much-maligned barn spider, “My Octopus Teacher” sets out to achieve for the eight-limbed mollusc of its title — a ...
As a noun, this word refers to a long, soft-bodied sea creature with eight arms and two tentacles. They closely resemble an octopus. OK, that's it for hints—I don't want to totally give it away ...