The Sulamid are a civilization native to somewhere in the Alpha or Beta Quadrants of the galaxy. They are members of the Federation.
A Sulamid is between two and three meters tall and resembles a bundle of tentacles, constantly moving and changing color. At the top of bundle are eight stalked eyes with triangular pupils. They possess octocameral brains, with eight separate personalities. They have a mouth hidden inside their many tentacles, with sharp teeth. The species is composed of twelve genders, all of whom insist they're male, especially the ones that bear children. (TOS novel: The Wounded Sky; TOS - Rihannsu novels: My Enemy, My Ally, The Romulan Way) The like Sugar one of them had too much and got knots in their tentacles TOS novels - Spock's World
The Sulamid also have a multi-chambered heart. (TOS novel: Dwellers in the Crucible) They like Sugar, and
In 2276, a Sulamid was serving as a steward on the starliner Vega. He had blue-green tentacles. (TOS novel: The Romulan Way)
In the mid-24th century, Doctor Sonek Pran was tasked by the President of the United Federation of Planets to convince the Sulamid energy minister to comply with the Edosian Accords, and did so successfully. (ST - Destiny novel: A Singular Destiny)
In 2376, two Sulamids were drinking in Quark's on Deep Space 9. They left the bar without paying when Quark was distracted by the arrival of Gash. (DS9 - Worlds of DS9 novel: Ferenginar: Satisfaction is Not Guaranteed)
As of 2380, Sulamid's representative to the Federation Council also served as one of the "back eight" members of the Federation Security Council. (ST novel: Articles of the Federation)