The species most commonly seen was the Finner; after that the blue whale.
We fired a Hjort mark harpoon, No. 171, into a blue whale on this day.
The head is quite broad and rounded, somewhat like that of the blue whale.
The rostrum is narrower and more V-shaped than that of the blue whale and has the same sort of single distinctive head ridge.
The top of the head is flat, though slightly less than that of the blue whale.
In general, the head is intermediate in shape between that of the blue whale and that of the fin whale.
Although it is highly variable, the dorsal fin most closely resembles that of the blue whale.
The only other rorqual to do so—the blue whale—raises the flukes slightly or not at all.