English: North Pacific Right Whale (Eubalaena japonica) - closeup of the (closed) blowholes, callosities and barnacles (whale heading to right), photographed 1/4 mile SW of Pillar Point, Half Moon Bay, California
This is the only sighting of a right whale in any ocean which shows these Coronula spp barnacles. These barnacles are found on almost all humpback whales, and it seems likely that the right whale got them while associating with humpback whales during winter or spring. There are two records of North Pacific Right Whales associating with humpbacks, one off Point Sur, California and the other in Hawaii. Right whales in the Southern Hemisphere carry a barnacle, Tubicinella, but that tubular barnacle is completely embedded in the skin rather than perched on top of the skin.
{{Information |Description={{en|1=North Pacific Right Whale - closeup of the (closed) blowholes, callosities and barnacles (whale heading to right), photographed 1/4 mile SW of Pillar Point, Half Moon Bay, California}} |Source=Own work by uploader |Author