In Greek mythology father and companion of Dionysus. In zoology is the same lion monkey, macaque monkey Lion, monkey-tailed Threadfin. It is located in the southeast of the India. Its scientific name is Macaca silenus and belongs to the family Cercopithecidae (old world monkeys). Silenus, was also the pseudonym of a Spanish caricaturist of the last century, called Pedro Antonio Villahermosa Borao. Xylene, x, is the name of a chemical substance. It is in the oil, it is liquid, colorless and highly flammable.