Baleen (noun) bluish, white-spotted blunt-finned whale, hunted by the Red Hunters.


Sometimes they managed to secure the northern shark, sometimes even the toothed Hunjer whale or the less common Karl whale, which was a four-fluked, baleen whale
Book 12, Beasts of Gor: Page 36
Two weeks ago, some ten to fifteen sleeps ago, by rare fortune, we had managed to harpoon a baleen whale, a bluish, white-spotted blunt fin. That two whales had been taken in one season was rare hunting, indeed. Sometimes two or three years pass without a whale being taken. 
Book 12, Beasts of Gor: Page 334
He then took a long strip of the baleen, about fifteen inches in leagth, and, with this knife, shapened both ends, wickedly sharp. 
Book 12, Beasts of Gor: Page 334
Baleen whales are also known at earth.