Triskellion
The Triskellion are a small, non-humanoid species resembling a disembodied
human brain. 3 members of this race were encountered by Captain James T.
Kirk when he and several of his crew were captured to participate in
gladiator-type fighting. After a wager with the Triskellions, Kirk was able
to negotiate the freedom of his crew as well as the other races enslaved for
gaming entertainment.