Dathan... Abiram. Korah not mentioned; not because of being an "older tradition" (as alleged), butbecause the "sons of Korah" were spared. See Psalms 42, Title, and compare Numbers 16:1-35 and Psalms 26:11.
covered. overwhelmed.
Related Commentaries of Psalms 106:17
Psalms 106:17
17 The earth opened and swallowed up Dathan, and covered the company of Abiram.