Malcorian

Malcorians are a humanoid species from Malcor III.

In the 2360s, the Malcorians were in the process of developing warp drive and the United Federation of Planets was secretly monitoring their progress. In 2367, William Riker was surgically altered to appear as a Malcorian for such a mission, but was injured and his true species was revealed. After Riker was tortured by a Malcorian opposed to first contact, the Malcorian leader decided that his people were not yet ready to learn of the existence of other species. 

In Q's anti-time future timeline that Jean-Luc Picard experienced, a Malcorian female was serving in Starfleet in the 2390s and was a transporter operator aboard the USS Pasteur (NCC-58925).