When the Monquistans first came to Skull Island, the realm was home to dozens of bands of Shark Raiders, vicious warriors who raided ports throughout the Spiral. After years of hard battles, only one great Shark clan remains: the Cutthroats.
Exposure to the sailors of distant lands has changed the Sharks - the brutes have become Shark Pirates, taking on Pirate dress and customs and trading their outriggers for stolen ships.
Though they no longer have the numbers to raid other realms, the Cutthroats remain a threat in Skull Island, where Monquista and Marleybone remain unable to completely eradicate them.