Octopus wolfi, the star-sucker pygmy octopus, is the smallest known octopus. It is found in fairly shallow waters in the western Pacific. It is characterised by a pattern of "papillate fringes" around the edge of the suckers near the arm tip.

Its length is less than 2.5 cm (1 in) and it weighs less than 1 g (0.04 oz). It is found in the western Pacific Ocean at depths between 3–30 metres (9.8–98.4 ft).

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