Bukalla

The Bukulla was an unknown group, being, race, or species somehow associated with the Fremennik Province and the dagannoth species that inhabit the Lunar and Northern Seas. Next to nothing is known about what the Bukulla was or were, and the term is used only once, in the official RuneScape Knowledge Base article on Waterbirth Island Dungeon.

According to the article, the Bakulla met anhialation at the hands of Dagganoth Supreme, one of the three Dagannoth Kings that now inhabit the tunnel systems beneath Waterbirth Island. Given that the Dagannoth Kings are said to be ancient, the Bakulla could have been defeated within a wide range of time, and as a result next to nothing can even be logically assumed about what the Bakulla was or were.

Although it is possible that the Bukulla will be expanded upon in a future update, Jagex has made no implication regarding the subject.