|This article is about a/an monster in Seijuu Sentai Gingaman and Denji Sentai Megaranger.|
Demon Beast Fortress Ghelmadix (魔獣要塞ゲルマディック Majū Yōsai Gerumadikusu, Gingaman vs. Megaranger) is a blue-colored, newly named version of Daitanix II. When Daitanix II was thought to have been destroyed, it revealed itself later, leading to the theory that Daitanix II had been revived and/or healed by the Earth's energy, much like the original Daitanix and Earth Beast. He is killed by Combined Beast-Warrior BullTaurus & Super Armor Shine Gingaioh.
- Ghelmadix's name is a pun on Kelmadick (ケルマディック号 Kerumadikku-go), the ship from the movie Japan Sinks.
- Neither Ghelmadix or Demon Fortess Daitanix II have Power Rangers counterparts. Possibly due to the Powers Rangers In Space and Lost Galaxy team-up had a different motive.