Bongo Advanced Behemoth
From Wookieepedia, the Star Wars wiki.
Bongo Advanced Behemoths were massive cruisers of the Gungan fleet, developed for shore bombardment and shelling of enemy fleets. They were equipped with thicker armor and twin booma-throwing energy catapults packed with enough firepower to level shore emplacements. Like standard Bongo Behemoths, Advanced Behemoths were massive cetacean vessels, metallic rather than biological in form and appearance. Advanced Behemoths had limited submersible capability.
