Not much is known about the octopus' habitat or life cycle, as only four specimens have been found.

[1][4] It occupies the benthic zone, or the seafloor and the water directly above it.

The species is somewhat large for a cirrate octopus, reaching a total length of 362 mm (14.3 in) long.

[6] Like other males in the genus Opisthoteuthis, these specimens had some enlarged suckers on their arms.

Unlike their sister taxa, however, O. robsoni males have enlarged suckers in the proximal field rather than the distal field (enlarged suckers closer to the body rather than toward the tip of the arm).