Not necessarily, there are smaller ones too that look similar to your pelmeni called uszka:
https://en.m.wikipedia.org/wiki/Uszka
But i know the pilmeni, they are called Russian pierogi in Poland, there are ones with cheese and mushrooms too. But then again I’m no native so maybe there are known as pilmeni too.
You are welcome and thanks for clarifying.
Ok this is really interesting because I never heard of them before. Maybe in some different parts of Russia they call them like that but yes they look really similar to the Pelmeni.
No not in Russia, they are called like that in Poland.
Ah ok now I get it :D Something new learned thanks!!!