This list of mythical creatures that begin with this letter and I am constantly gathering information from each continent, and is continually being updated.
Syrbotae (Medieval Bestiaries)
he Syrbotae, a species of giant mentioned in many medieval bestiaries, were said to live in Africa and stand about eight cubits tall (a cubit is the distance from a man's elbow to the tip of his middle finger). Pliny the Elder, Natural History 6. 194 (trans. Rackham) (Roman encyclopedia C1st A.D.) "On the African side [of the Aethiopian kingdom of Meroe] are the Medimni, and then a Nomad tribe that lives on the milk of the dog-faced baboon, the Alabi, and the Syrbotae who are said to be 12 feet high."