Peter Parker, the Spectacular Spider-Man #033 (1979)
“Night of the Iguana!”
Writer: Bill Mantlo
Artist: Jim Mooney
The Iguana has all the powers of Lizard and the memories of Connors. Iguana goes to Connors’ house to use his family as insurance that Connors will not try to destroy him. Connors purposefully changes into the Lizard to go fight Iguana. Spider-Man’s already at the penthouse fighting Iguana when Connors shows up.