The Sleri were a species of tentacle-like aliens, created by the Undine, who were self aware. There were large, starship-sized kinds and small, giant-worm-sized kinds. (Star Trek: Phoenix-X, Earth Spacedock)

History[edit | edit source]

In 2409, when the USS Zephyra and the USS Kitana were forced into fluidic space, the Undine scientist Kohogeth experimented successfully on Captain Terry, infusing him with Sleri and giving him increased strength and bio-electric energy. After the experience, Terry somehow suppressed his abilities and hid them from his crew. (Earth Spacedock: Page 23)

In 2410, in fluidic space, the Kohogeth admitted to "having (Sleri) from the very beginning" and had reached the point where he had thousands of them. He used them to attack and control Winry when he was attempting to convince Aeris to stay with him. Kohogeth also tried to replicate his Sleri-infusing experiment, that he had previously executed upon Terry, but modified it so that the end result was a giant conglomeration and mess of Sleri worms and human body parts. Meanwhile, Winry convinced the other, non-experimented-with-Sleri to help her take back the biobase they were in and assist the two women in returning to the prime universe. (Earth Spacedock: Pages 23-24)

In the prime universe, Terry began to experience a resurfacing of his energies from being half-Sleri. He became aggressive and powerful, whilst blaming Oroku Seifer for not being able to stop the Kitana from being pulled into fluidic space a year pervious, but eventually turned his focus onto and transporting to a Gorn ship which was threatening he and the people aboard the Federation transport Elysium. (Earth Spacedock: Page 24)

Sleri (mirror)[edit | edit source]

In 2377, a colony of mirror universe, giant Sleri tentacles, created by and brought from the Jem'Hadar of the mirror universe, lived in an asteroid belt in the prime universe. When the separated sections of the Prometheus-class USS Phoenix-X attempted to take on the mirror Jem'Hadar in those asteroids, the Sleri discovered themselves self aware enough to retaliate against both parties in space. When the shockwave of an exploding iso-star threatened the Sleri's lives, the Phoenix-X protected them with a barrier derived from transwarp technology. (Star Trek: Phoenix-X: "The Nega'Jem, Part I & II")

Sleri (Gamma Quadrant)[edit | edit source]

In 2381, a Hirogen named Matrox unintentionally brought a tentacle species over to the Alpha Quadrant from the Gamma Quadrant, the result of which, caused the Vulcan engineers of the ship Tonic to be attacked and infected by the species. Four months later, Matrox, seeing that Captain Sith was infected, refused to take him on as prey. ("Immortal Coil")

Abilities[edit | edit source]

The Sleri could communicate in space to starships by emitting high frequency bio-electric waves, and also had the ability to shock anything they came in contact with by generating massive amounts of bio-energy. (Star Trek: Phoenix-X: "The Nega'Jem, Part II")

When infused, or infecting a humanoid, they gave the host added strength and the ability to expel powerful bio-electric energy currents. In some cases, the infected had telekinetic ability, affecting his surroundings when his adrenaline was running. (Star Trek: Phoenix-X: "Immortal Coil", Earth Spacedock: Page 24)

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