In 2151, the Klingon vessel IKS Somraw raided a Xarantine outpost and looted Xarantine ale to celebrate the victory. However, unknown to the Klingons, the ale was poisoned. Falling ill and attacked by Xarantine ships, the captain of the Somraw eventually decided to retreat into a Q'tahL class gas giant's atmosphere. (ENT: "Sleeping Dogs")
The plural name for multiple members of this species was scripted to consistently be "Xarantines". However, this clearly was slightly modified, with a combination of them not only referenced by that collective noun but also without the letter "s".