Book lungs

[ballpython2]

I just realize some of my T's only show one pair of book lungs even though there are two sets..why is this?

 

[ShadowBlade]

Look closer, there's another pair.

-Sean

 

[cheetah13mo]

Normally the two small, forward most lungs are well hidden by hair or the colors blend real well.

 

[Gigas]

Or occasionally hidden by legs IV