queston about orchid names

[GregorK]

Hello

I was doing a little research on C. kerrii and found this name.


Cattleya kerrii "Bahia" x s

So now i want to know, what does word Bahia means. Is it just the name of the form?
and what does x s mean ( maybe x self) is this some sort of cross or what?

And i also found
Cattleya kerrii Brieger & Bicalho

I typed Brieger and bicalho in the google and pictures show some different orchids that have the same name.
Is this just the name of the natural form, or maybe the person who found them. I'm a bit confused about that.

Gregor