Form D of Ancula gibbosa sensu lato with opaque white spots, and white or yellowish white pigment on appendages. From an abundant local population on a muddy substrate in Vancouver Harbour on the Pacific coast of Canada, February, 2007. Amphipod resting on gills. © N. McDaniel.
A similar form also occurs on the Pacific coast of Russia. Their statuses are uncertain as, currently, there are no publicly available molecular sequences of spotted A. gibbosa from the eastern or western Pacific.