The Xindi-Primate ship was a type of Xindi cruiser used by the Xindi-Primates in the 2150s.
In 2154, Degra docked with a vessel of this type for a meeting with three members of the Xindi Council. (ENT: "E²")
Later the same year, a fleet of Primate and Arboreal ships escorted the NX-class starship Enterprise through their security zone to the Xindi Council planet. (ENT: "The Council")
Shortly thereafter, the Primate starship was among several which intercepted a Reptilian and Insectoid fleet guarding the Xindi weapon. (ENT: "Countdown")
This vessel additionally appears in the video games Star Trek: Encounters and Star Trek: Conquest.