This list of mythical creatures that begin with this letter and I am constantly gathering information from each continent, and is continually being updated.
Komainu (Japanese)
Komainu, often called lion-dogs in English, are statue pairs of lion-like creatures, which traditionally guard the entrance or gate of the shrine, or placed in front of or within the honden (inner sanctum) of Japanese Shinto shrines. Meant to ward off evil spirits, modern komainu statues usually are almost identical, but one has the mouth open, the other closed (however, exceptions exist, where both komainu have their mouth either open or closed).
The most common form that komainu appear in nowadays are the stone ones guarding the approach-ways to shrines, though this is in fact a relatively recent development with the vast majority being made in the late Edo Period. Until then most komainu were made of wood and were kept undercover or indoors.