Wrong!
The jag and the puma are the same cat.
You’re thinking of the lynx and bobcats, which are the same as house cats, as in they have purring cords, and meow rather roar.
The puma can be black, tan, or spotted, just like the Jag and the leopard, and are approximately the same size/weight,except that the puma in northern reaches get about 25% larger than the Jag, and apparently live longer.
Saying so doesn’t make it so, even if you say it loud and often. If nothing else, check out the pictures. Obviously two different animals, even without looking at internal anatomy. Jeff is right.
Different specific epithet:
Jaguar: onca
Mountain lion: concolor
Different genus:
Jaguar: Panthera
Mountain lion: Puma
Different subfamily:
Jaguar: Pantherinae
Mountain lion: Felinae
“jag and the puma are the same cat.”
No one’s a puma and one’s a jaguar different sub species.
The ones in the South are Mountain Lions with a black coat.