Gelbo

Gelbo, or Kelbo, is a planet with intense seismic activity where the six-star Black Star Dragon Ball lands on. Gelbo is populated by a race of humanoids and a catfish monster called Zoonama. The princess of this planet, Leena, was kidnapped by Zoonama, and saved by her fiance, Doma, along with Goku, Trunks and Pan.