confusion about the holes in the outer hull

[ichso]

Hi,

call me picky but what's really up with these holes at the side of a submarine ? I mean their number and arrangement.
On many pictures you see a gato class sub having these kinds of holes:


while on some others you see this:

Both are supposed to be gato boats. The latter one is the USS Gato, specifically. But a detailed model of the USS Gato also shows her like this:


So, which one tells the truth ? Did the outer hull and therefore maybe the holes change during the war ? Are some of the pictures incorrect ?

Thanks for any hints, i.