Alluram was a continent that was on the planet Remus. It was known as the largest landmass on the world and was home to 71% of the inhabitants as well as the place where the capitol of Biscae was situated. (FASA RPG module: The Romulans) The FASA material indicates Remus to be a habitable world which contradicts canon elements, however, its still possible that Alluram was located on the planet as well as being home to a majority of the people.