This was Aquaman's chance to go back to the Secret Sancutary and form a new JLA, leaving the other four in their freakish, distorted bodies. He would ennact this plan twenty-three years later.
The story: "The Cosmic Fun-House!" by Gardner Fox, Mike Sekowsky, and Bernard Sachs. The JLA rescue Snapper Carr and girlfriend Midge(!) from a weird, inter-dimensional fun-house(oh, not that old plot). Problem is, some of the JLAers who attempt the rescue get abducted and replaced by aliens from the planet Angellax. Man, did Fox manage cram a lot of plot into twenty or so pages!
Since the JLAers originally went undercover in their civilian identities, its up to Aquaman to help his kidnapped and transformed teammates. You haven't lived until you've seen Aquaman help an obese Wonder Woman lift one of her giant arms in an attempt to throw her Magic Lasso.
Roll Call: Superman, Batman, Wonder Woman, Aquaman, Flash, Green Lantern, Martian Manhunter, Green Arrow
Notable Moments: JLA had a surprisingly proportionate amount of male and female readers--in the two-page letter column, out of the nine letters, three are from women, a number that would pretty only go straight down over time.