This list of mythical creatures that begin with this letter and I am constantly gathering information from each continent, and is continually being updated.
Shokera (Japanese)
The shokera is a large, dark-skinned, three-toed demon which spends most of its time lurking about on rooftops. Not much is known about this fearsome beast aside from its hunting practices. The shokera is believed to be some kind of demon with connections to K?shin, an esoteric Japanese folk religion with origins in Taoism.
Yokai-related literature starting in Showa and Heisei began to give the interpretation that this is surveillance to see whether people are following the rules of Koshin-Machi day, and it is supposed that the shokera would give a punishment by three fingers with sharp nails on those who break the rule.