And what's new about it, aside from the stunning picture?

From Mark Norman's guide:
Paraledone turqueti
Size: Body to 6cm, arms to 12cm.
Dist: Western Antarctica.
This small octopus lives in the freezing waters around the entire continent of Antarctica (circumpolar)
(Ed: hang on, didn't he just say it was Western Antarctica?), from shallow coastal waters to at least 4,000m deep.
It is recognised by the absence of a skin ridge round the body and the nearly smooth skin scattered with low granular bumps. Females produce large eggs which probably take a long time to mature in these sub-zero waters. The resulting large hatchlings would immediately adopt a bottom-living lifestyle.