From UFStarfleet Wiki
First encountered by the USS Shogun while lost in the past, the exact chronological date of contact isn’t known, but ship’s chronometers indicate an approximate Stardate of 100529, Pinastri real time, when the USS Shogun investigated a unique signal and encountered a vessel of unknown design, crewed by a sluglike race obsessed with DNA extraction, sampling and manipulation.
Few facts were gained by Shogun away teams, although the species is able to stay 'aloft' making it likely that they have telekinetic powers. They also showed strong evidence of telepathy, organization and intelligence.
This species captured members of the USS Shogun crew and attempted to extract DNA samples for study, testing and 'integration' into their biological make up.
Origin and timeline of the Zelusian race is unknown, limited details obtained on their humanoid creators. Encountered by the USS Shogun approximately 1885 chronological, 2385 by ships chronometer.
Unknown, appears that the Zelusians functioned as a collective, however this could not be confirmed. They were obsessive scientists.
Zelusian technology functioned at approximately Garret Era Federation tech levels.
USS Shogun mission logs, Stardate 100529 - http://www.ufstarfleet.org/forums/viewtopic.php?f=268&t=14107
Authored by Ulrich Bechir, Stardate 110924