Octopus (Octopus vulgaris), eye and acetabula (suction appendages)

acetabula and animal animals appendages aquatic arm arms body cephalopod cephalopods close close up close ups closeup closeups coleoidea cup cups detail details dweller dwellers eye eyes fauna kingdom life marine mollusc molluscs mollusk mollusks nature nobody ocean octopi octopodes octopus octopuses octupi octupus of organisms part sea shot shots suction suction the underwater up ups vulgaris wild wildlife world