Which demon was killed by Varaha?

The pastime of Lord Varaha killing a demon is elaborately mentioned in the third Canto of Srimad Bhagavatam. There were two demoniac brothers named Hiranyakashipu and Hiranyaksha, the sons of Kashyap Muni. They bore uncommon bodily features and thus flaunted their supremacy everywhere. Their bodies grew just like mountains, touching the sky, and they blocked the view in all directions. The demon Hiranyaksha once upon a time exploited enough gold from the earth, causing it to go out of orbit. The planet then fell into the causal ocean. Seeing this, Lord Brahma, the creator of the universe, was thinking about how to lift the earth from the ocean. He prayed to the Supreme Lord, who then took the form of a small white boar and came out from his nostril. He then grew taller and taller and looked like a gigantic elephant. The Lord dived into the ocean and took the earth on His tusk and lifted it. He then looked at the Hiranyaksha demon with His eyes full of rage and killed him in the water.