Black Legion of Callisto has 203 pages.
Ylana of Callisto has 192 pages.
Lankar of Callisto has 203 pages.
Mad Empress of Callisto has 191 pages.
Sky Pirates of Callisto has 189 pages.
Mind Wizards of Callisto has 189 pages.
The Legion of Space has 259 pages.
"Jandar of Callisto" by Lin Carter is a novel that typically has around 220-240 pages, depending on the edition and print size.
Rides a Dread Legion has 366 pages.
Legion of the Damned - novel - has 352 pages.
My Name Is Legion - Zelazny stories - has 213 pages.
Black Cocktail has 76 pages.
Black Easter has 165 pages.