Cenkellans

The inhabitants of Cenkella. Cenkellans average four and a half feet tall and have reddish skin. They were just about to make their first warp flight, prompting Starfleet to send the Secondprize to initiate first contact. The Cenkellans attacked the away team under the command of the visiting Commander Conway, and, while the Cenkellans had beam weapons, something about their construction made them useless on humans. Conway went on a rampage, which the Cenkellans eventually stopped when they realized plain old bullets worked fine on humans. They eventually forced Conway to surrender. Their demands included all the steak they could eat and starship rides around the solar system. ("Of Gods and First Officers" [TRK, VEX])