A landram is a tracked vehicle used for ground operations (Saga of a Star World), typically shuttled to a planet via a shuttle (TOS: "The Gun on Ice Planet Zero, Part I"). It is capable of holding crew and cargo, and is equipped with a top mounted turret weapon. A landram was used for the initial scouting of Carillon. They were later used to evacuate civilians and warriors from the "pleasure resort" on the planet (TOS: "Saga of a Star World").
Another modified version, this time without the cabin and open to the air, and presumably without Colonial markings, appears in "The Magnificent Warriors". It is stolen by agents of the Sheriff in Serenity.