Some of the ones we may discuss:
Banshee:The female spirt that foretells death with her mournful screaming or singing.
This jolly shoemaker didn't always wear green or sell breakfast cereals.
A shapeshifter that started horrible, but later became an imaginary friend to Jimmy Stewart in Harvey.
The horse in the water.
Seals that can transform into humans for love, mainly.
The Cat Sìth:
|My cat impersonating a Cat Sith|
The large black cat that haunts the countryside.
|From Legacy of Kain. The original ones from myths looked like crows.|
Sprits of the restless dead.
To follow on Twitter; search for #mythbeasts. It is better to use another site like Tweetchat.