Cervus elaphus was an Earth lifeform listed in the HMS Bounty's phylum search mode.
In 2286, a Cervus elaphus was one of the animals shown when Spock searched the Bounty's database for a match to the Whale Probe's vocalizations. (Star Trek IV: The Voyage Home)
In reality, the
Cervus elaphus is the scientific name for the red deer.