[1] An adult is approximately 1 meter in length, and is found at depths of up to 1 kilometer.

[2] Unlike any other known member of the genus Bathyraja, the white-blotched skate has white blotches on a grey to brown dorsal surface, while the ventral side is lighter in color with darker blotches.

[3] The white-blotched skate is well established to inhabit waters in the Northern Sea of Japan, Sea of Okhotsk and Aleutian Islands.

It was the most commonly caught skate in a NOAA bottom-trawl survey of the Aleutian Islands in 2006.

[4] Initially thought to inhabit only the western margin of the Gulf of Alaska, trawl surveys have now found specimens along the eastern margin as well.