Remus

Much about Remus remains a mystery, including the source of its humanoid population: there is no onscreen proof, one way or the other, to suggest whether Remans come from Remus itself or are mutated descendants of the original Vulcan colonists. However, a clue to his lies in the fact that appear to be a telepathic race like both vulcans and Romulans.The planet's inhabitants are the bat-like Remans, who were subjugated ever since the Romulans staked their claim and set up their new homeworld in the system. It is unclear whether the Remans are native to Remus, or whether they are another Vulcanoid-offshoot race. Because the planet is tidally locked to its sun, one side of the planet is in constant darkness. Living on this dark side the Remans are extremely sensitive to light.