Riddle of the Four Planets (Superman, Batman and Robin / written by Jerry Coleman : reprinted in: World's Finest Comics #206)
King of the Land Beasts (Aquaman and Aqualad / written by Bob Haney) Why can't Aquaman stay underwater?
War Against the Weather
Homer (gag strip by Henry Boltinoff)
The Human Sharks (Green Arrow, Speedy / written by Bob Haney : reprinted in: Showcase Presents Green Arrow #1) Can Green Arrow defeat an underwater gang?
Note: most fans wonder why the Zelaphod was not initially mistaken for a Starro clone. The answer is most likely that "Riddle of the Four Planets" was set on Earth-2. Especially given the fact that Batman is still sporting the plain old black-on-gray bat logo (as opposed to the yellow oval sported by the Earth-1 Batman post-1964).
— Description from Comic Vine community (comicvine.gamespot.com).
