You may congratulate me.))
I finally found name for my creatures!
Ok. They can be White and Black, and also Grey (Half-breed).
Sindu - white
Sirinx/Sinx - black
Tori - half-breed

for information, Sindu and Sirinx were twins-sisters
They came from big waterfall many years ago with other creatures. From they have occurred two nations. Sindu - white creatures, and Sirinx (or Sinx) - black creatures. Both nations are in conflict. They doesn't remember, why this war began